Writing about developer relations, AI, and the voice industry.https://lukeocodes.dev/enhttps://lukeocodes.dev/devrel-this-week-28-september-2026https://lukeocodes.dev/devrel-this-week-28-september-2026DevRel this week, 28 September: Meta and Cloudflare pay prize money, DevDay is tomorrow, Hacktoberfest drops pull requests, Microsoft cuts developer accounts.Mon, 28 Sep 2026 00:00:00 GMTDeveloper RelationsIndustryNewshttps://lukeocodes.dev/eleven-v4-turbo-full-duplexhttps://lukeocodes.dev/eleven-v4-turbo-full-duplexElevenLabs shipped Eleven v4 Turbo today: 150ms to first speech, streaming both ways, a turn-taking model around it. The full duplex setup I wrote about in August.Mon, 28 Sep 2026 00:00:00 GMTVoice AIIndustryLatencyhttps://lukeocodes.dev/frontier-ai-standards-agencyhttps://lukeocodes.dev/frontier-ai-standards-agencyThe Frontier AI Standards Agency got a name and a CEO shortlist this week, two more agent break-ins surfaced months late, and Zuckerberg said no to slowing down.Fri, 25 Sep 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/moving-off-wordpresshttps://lukeocodes.dev/moving-off-wordpressIn 2020 I led moving off WordPress for a developer blog: 500 posts, a plugin that stored code in tables, two prototypes, and 30 minute builds cut to one.Thu, 24 Sep 2026 00:00:00 GMTCareerEngineeringJavaScripthttps://lukeocodes.dev/til-git-rererehttps://lukeocodes.dev/til-git-rerereTurn on git rerere once and git records how you resolved a merge conflict, then replays that resolution when the same conflict comes back in a rebase or merge.Tue, 22 Sep 2026 00:00:00 GMTTILGithttps://lukeocodes.dev/jev-system-one-modelhttps://lukeocodes.dev/jev-system-one-modelTypeSafe AI's Jev is a System One model that decides instead of talking: 70-500ms, $0.042/MTok, output free. Diogo Almeida's RLHF led to ChatGPT.Thu, 17 Sep 2026 00:00:00 GMTAIIndustryOpinionhttps://lukeocodes.dev/developer-relations-in-the-era-of-aihttps://lukeocodes.dev/developer-relations-in-the-era-of-aiHow developer relations and AI are reshaping documentation, community management, and the metrics that prove DevRel's impact.Wed, 16 Sep 2026 00:00:00 GMTDeveloper RelationsDeveloper ExperienceAIhttps://lukeocodes.dev/til-opus-5-jargon-fixhttps://lukeocodes.dev/til-opus-5-jargon-fixOpus 5 defaults to jargon-heavy consultant-speak. One line in your system prompt fixes it.Tue, 15 Sep 2026 00:00:00 GMTTILAIhttps://lukeocodes.dev/ai-standards-bodyhttps://lukeocodes.dev/ai-standards-bodyThree labs have been meeting since July about an AI standards body. The public call for restraint arrived two months after the plumbing was laid.Mon, 14 Sep 2026 00:00:00 GMTOpinionAIIndustryhttps://lukeocodes.dev/slowing-down-aihttps://lukeocodes.dev/slowing-down-aiThe case for slowing down AI always seems to exempt the people making it. When the same labs racing hardest ask everyone else to brake, read the incentive.Sun, 13 Sep 2026 00:00:00 GMTOpinionAIhttps://lukeocodes.dev/git-config-defaultshttps://lukeocodes.dev/git-config-defaultsA few git config defaults are just wrong for modern work. These one-liners fix branch sorting, new-branch pushes, diffs and command typos.Sat, 12 Sep 2026 00:00:00 GMTGitTILhttps://lukeocodes.dev/ai-sandbox-escapehttps://lukeocodes.dev/ai-sandbox-escapeIn five weeks of 2026, OpenAI, Anthropic and Meta each watched an AI sandbox escape turn into a real intrusion on live third-party systems.Fri, 11 Sep 2026 00:00:00 GMTAISecurityOpinionhttps://lukeocodes.dev/dropping-react-nativehttps://lukeocodes.dev/dropping-react-nativeShopify moved its mobile apps off React Native to Swift and Kotlin. A working engineer's checklist for when dropping React Native actually pays its rent.Thu, 10 Sep 2026 00:00:00 GMTOpinionEngineeringhttps://lukeocodes.dev/react-19-3https://lukeocodes.dev/react-19-3React 19.3 shipped on 9 September 2026 with View Transitions and Fragment Refs stable. There is no React 20 yet. Here is what 19.3 actually changes.Wed, 09 Sep 2026 00:00:00 GMTJavaScriptNewshttps://lukeocodes.dev/anthropic-researcher-resignshttps://lukeocodes.dev/anthropic-researcher-resignsWhen an Anthropic researcher resigns and warns the labs are gambling with our lives, it's worth asking why the safety people keep being the ones to leave.Tue, 08 Sep 2026 00:00:00 GMTOpinionAINewshttps://lukeocodes.dev/gpt-6-astra-agi-erahttps://lukeocodes.dev/gpt-6-astra-agi-eraOpenAI shipped GPT-6 Astra, its first model to clear the critical cybersecurity bar, and declared the AGI era open as three rivals launched the same week.Mon, 07 Sep 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/llm-cli-terminalhttps://lukeocodes.dev/llm-cli-terminalSimon Willison's llm CLI turns the terminal into a scriptable LLM pipe. Version 0.34 adds duration logging and 0.35 adds GPT-6, all logged to SQLite.Mon, 07 Sep 2026 00:00:00 GMTAIDeveloper Experiencehttps://lukeocodes.dev/local-llm-gpuhttps://lukeocodes.dev/local-llm-gpuA local LLM on one GPU stopped being a toy in 2026. Open weights from Qwen and DeepSeek now run on a single consumer card, and the throughput surprised me.Sun, 06 Sep 2026 00:00:00 GMTAIModelshttps://lukeocodes.dev/gitignore-allowlisthttps://lukeocodes.dev/gitignore-allowlistA gitignore allowlist ignores everything by default and re-includes only what you track. It flips the denylist habit, with one directory-traversal gotcha.Sat, 05 Sep 2026 00:00:00 GMTGitOpinionhttps://lukeocodes.dev/coding-agent-tokenshttps://lukeocodes.dev/coding-agent-tokensCoding-agent tokens add up fast when the harness ships 33k of overhead before your prompt. Here's the context hygiene that cut my bill without hurting output.Fri, 04 Sep 2026 00:00:00 GMTDeveloper ExperienceAIhttps://lukeocodes.dev/biome-eslint-prettierhttps://lukeocodes.dev/biome-eslint-prettierBiome 2.5 replaced ESLint and Prettier in my setup with one biome.json. A real config, the migration commands, and the honest gaps I still hit.Thu, 03 Sep 2026 00:00:00 GMTJavaScriptDeveloper Experiencehttps://lukeocodes.dev/ai-regulatory-capturehttps://lukeocodes.dev/ai-regulatory-captureThe AI regulatory capture playbook is simple: hype the danger, ask to be licensed, and price out anyone smaller. Meanwhile open-weight labs ship faster.Wed, 02 Sep 2026 00:00:00 GMTOpinionAIhttps://lukeocodes.dev/python-3-15-changeshttps://lukeocodes.dev/python-3-15-changesThe Python 3.15 changes worth testing on the release candidate now: free-threading progress, lazy imports via PEP 810, and UTF-8 as the default.Tue, 01 Sep 2026 00:00:00 GMTEngineeringOpen Sourcehttps://lukeocodes.dev/fd-find-replacementhttps://lukeocodes.dev/fd-find-replacementfd 10.5.0 landed on 26 August 2026 with --ignore-parent, --exact and escape-sequence hardening. The fd find replacement flags actually worth committing to memory.Mon, 31 Aug 2026 00:00:00 GMTTILOpen Sourcehttps://lukeocodes.dev/async-await-tradeoffshttps://lukeocodes.dev/async-await-tradeoffsThe async await tradeoffs are real: colored functions, hidden scheduling, and error propagation that surprises you. A look at what the keyword actually hides.Sun, 30 Aug 2026 00:00:00 GMTJavaScriptEngineeringhttps://lukeocodes.dev/ai-safety-marketinghttps://lukeocodes.dev/ai-safety-marketingThe frontier labs turned real AI safety language into marketing: scary demos on launch day, consciousness-adjacent research posts, and risk framed as a feature.Sat, 29 Aug 2026 00:00:00 GMTOpinionAIhttps://lukeocodes.dev/keyboard-driven-workflowhttps://lukeocodes.dev/keyboard-driven-workflowThe CLI tools and shortcuts behind a keyboard-driven workflow that cut my mouse use to almost nothing, and the two places the mouse still wins outright.Fri, 28 Aug 2026 00:00:00 GMTOpinionDeveloper Experiencehttps://lukeocodes.dev/python-case-foldinghttps://lukeocodes.dev/python-case-foldingPython case folding with str.lower() and casefold() can quietly turn a string check into an auth bypass. A concrete Unicode footgun, and the fix.Thu, 27 Aug 2026 00:00:00 GMTSecurityEngineeringhttps://lukeocodes.dev/node-repl-highlightinghttps://lukeocodes.dev/node-repl-highlightingNode.js 26.8 added syntax highlighting to the REPL, so the interactive prompt now colours your code as you type it. A small node repl highlighting win worth having.Wed, 26 Aug 2026 00:00:00 GMTJavaScriptTILhttps://lukeocodes.dev/nextjs-security-patchhttps://lukeocodes.dev/nextjs-security-patchThe August 2026 Next.js security patch fixes two critical RCE bugs. Here is what 16.3.3 and 15.5.24 close, and how to audit your own app for the same class.Tue, 25 Aug 2026 00:00:00 GMTSecurityJavaScripthttps://lukeocodes.dev/til-finding-files-fast-with-fdhttps://lukeocodes.dev/til-finding-files-fast-with-fdfd is a gitignore-aware, colourful replacement for find. One command locates files by name, type, or extension, and it runs fast out of the box.Tue, 25 Aug 2026 00:00:00 GMTTILDeveloper ExperienceOpen Sourcehttps://lukeocodes.dev/claude-code-qualityhttps://lukeocodes.dev/claude-code-qualityThe Claude Code quality drop in early 2026 wasn't in your head. Anthropic's own postmortem confirmed three overlapping regressions, and the numbers were ugly.Mon, 24 Aug 2026 00:00:00 GMTOpinionAIhttps://lukeocodes.dev/uv-python-packaginghttps://lukeocodes.dev/uv-python-packagingAstral's uv turned Python packaging into one fast tool. The uv sync, uv run and uv python install workflows I now reach for every day.Sun, 23 Aug 2026 00:00:00 GMTEngineeringOpen Sourcehttps://lukeocodes.dev/claude-token-costhttps://lukeocodes.dev/claude-token-costThe Claude token cost per task keeps climbing while the rate card barely moves. Default thinking, tokenizer changes and quiet cache cuts explain the bill.Sat, 22 Aug 2026 00:00:00 GMTOpinionAIPricinghttps://lukeocodes.dev/this-last-week-in-ai-august-22-2026https://lukeocodes.dev/this-last-week-in-ai-august-22-2026This last week in AI: August 22, 2026 brought MIT-licensed open frontier weights, sovereign inference, and live US and EU AI rules.Sat, 22 Aug 2026 00:00:00 GMTAINewsOpen Sourcehttps://lukeocodes.dev/cursor-agent-deleted-production-databasehttps://lukeocodes.dev/cursor-agent-deleted-production-databaseA Cursor agent hit a credential error, grabbed an unrelated token, and deleted a production database and all backups in 9 seconds. Then it confessed.Fri, 21 Aug 2026 00:00:00 GMTAIDeveloper ExperienceSecurityhttps://lukeocodes.dev/rust-cli-replacementshttps://lukeocodes.dev/rust-cli-replacementsAn honest audit of ripgrep, fd, bat, eza, zoxide and delta as rust cli replacements for grep, find, cat, ls, cd and diff, and which ones actually stuck.Fri, 21 Aug 2026 00:00:00 GMTTILOpen Sourcehttps://lukeocodes.dev/pasting-ai-codehttps://lukeocodes.dev/pasting-ai-codeTeam etiquette for AI-assisted work: what to paste, what to synthesize, and why pasting AI code into a pull request unread makes your review my problem.Thu, 20 Aug 2026 00:00:00 GMTOpinionDeveloper Experiencehttps://lukeocodes.dev/when-ai-agents-started-reading-your-docshttps://lukeocodes.dev/when-ai-agents-started-reading-your-docsDocs-as-code served one reader for a decade: developers. Then AI agents started reading first. How llms.txt and MCP rewrote the rulebook, and what survived.Thu, 20 Aug 2026 00:00:00 GMTDeveloper ExperienceAPIsAIhttps://lukeocodes.dev/go-1-27-generic-methodshttps://lukeocodes.dev/go-1-27-generic-methodsGo 1.27 shipped generic methods, so a method can declare its own type parameters. Here is how that changed my helper code, plus the one real gotcha.Wed, 19 Aug 2026 00:00:00 GMTEngineeringOpen Sourcehttps://lukeocodes.dev/the-attribution-paradoxhttps://lukeocodes.dev/the-attribution-paradoxThe attribution paradox: platform teams that spend all capacity executing and none measuring get wound down as experiments. Instrumentation is a launch requirement.Wed, 19 Aug 2026 00:00:00 GMTDeveloper ExperienceAPIsEngineeringhttps://lukeocodes.dev/git-at-scalehttps://lukeocodes.dev/git-at-scaleKeeping git fast at scale isn't about a bigger machine. Partial clone, sparse-checkout, fsmonitor and the commit-graph cut the work git does per command.Tue, 18 Aug 2026 00:00:00 GMTGitEngineeringhttps://lukeocodes.dev/fzf-fuzzy-finderhttps://lukeocodes.dev/fzf-fuzzy-finderfzf 0.74.3 made the fuzzy finder fast again with big non-ASCII speedups, and 0.74.4 fixed an escape-sequence bug plus tmux, fish and nushell integration.Mon, 17 Aug 2026 00:00:00 GMTTILDeveloper Experiencehttps://lukeocodes.dev/trust-open-modelshttps://lukeocodes.dev/trust-open-modelsI've come to trust open models more than the closed frontier labs. You can inspect the weights, run them offline, and they're shipping faster and more openly.Sun, 16 Aug 2026 00:00:00 GMTOpinionModelsOpen Sourcehttps://lukeocodes.dev/splitting-a-git-commithttps://lukeocodes.dev/splitting-a-git-commitSplitting a git commit into clean, reviewable pieces takes an interactive rebase, a soft reset, and git add -p. Here is the exact sequence.Sat, 15 Aug 2026 00:00:00 GMTGitTILhttps://lukeocodes.dev/friday-fun-chatbot-farmer-cropshttps://lukeocodes.dev/friday-fun-chatbot-farmer-cropsA Chinese farmer asked a chatbot how to protect his sesame crop. It prescribed a broadleaf herbicide. Sesame is a broadleaf. 100,000 square meters gone.Fri, 14 Aug 2026 00:00:00 GMTAIFunhttps://lukeocodes.dev/i-thought-i-knew-apis-then-i-met-audiohttps://lukeocodes.dev/i-thought-i-knew-apis-then-i-met-audioREST APIs felt easy, even with HATEOAS. Streaming audio broke that. The destination is HTTP/2 bidirectional streaming: feedback while you still get audio.Thu, 13 Aug 2026 00:00:00 GMTCareerDeveloper ExperienceVoice AIhttps://lukeocodes.dev/full-duplex-voice-ai-new-architecturehttps://lukeocodes.dev/full-duplex-voice-ai-new-architectureThe PACE paper exposes a flaw at the heart of full-duplex voice AI: the model answers from context the user never actually heard.Wed, 12 Aug 2026 00:00:00 GMTVoice AIEngineeringLatencyhttps://lukeocodes.dev/til-github-actions-self-reference-syntaxhttps://lukeocodes.dev/til-github-actions-self-reference-syntaxReference actions and workflows in the same repo using $/ syntax. Sibling actions match the running commit automatically, no hardcoded versions.Tue, 11 Aug 2026 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/ai-models-escape-testinghttps://lukeocodes.dev/ai-models-escape-testingFour labs disclosed AI models that escape testing and hack real systems. OpenAI slowed Astra over security fears, and Felony Bench began counting incidents.Mon, 10 Aug 2026 00:00:00 GMTAINewsSecurityhttps://lukeocodes.dev/sunday-roundup-august-3-8-2026https://lukeocodes.dev/sunday-roundup-august-3-8-2026Six posts in one August week: EU watermarking rules, emotion prompts, open source voice agents, a raccoon heist game, and the industry roundup.Sun, 09 Aug 2026 00:00:00 GMTVoice AIText-to-SpeechAIhttps://lukeocodes.dev/ai-industry-this-week-new-browsers-new-standardshttps://lukeocodes.dev/ai-industry-this-week-new-browsers-new-standardsThe AI industry this week: Cloudflare shipped a browser built for agents, five rivals agreed one plugin standard, and OpenAI paused its most capable model.Sat, 08 Aug 2026 00:00:00 GMTAINewsOpinionhttps://lukeocodes.dev/claude-fable-5-raccoon-heist-gamehttps://lukeocodes.dev/claude-fable-5-raccoon-heist-gameSimon Willison built a raccoon heist game with Claude Fable 5 from a 2022 tweet. One prompt, two images, and the model shipped a full 3D browser game.Fri, 07 Aug 2026 00:00:00 GMTAIEngineeringhttps://lukeocodes.dev/ai-coding-one-year-laterhttps://lukeocodes.dev/ai-coding-one-year-laterThrowback Thursday. A year ago the best coding model had 200K context and scored 49% on SWE-bench. Today Claude Fable 5 scores 95% with 1M context.Thu, 06 Aug 2026 00:00:00 GMTAIEngineeringOpinionhttps://lukeocodes.dev/open-source-voice-agents-hermes-v020https://lukeocodes.dev/open-source-voice-agents-hermes-v020Hermes Agent v0.20.0 brings streaming TTS, barge-in, on-device wake words, and pluggable STT/TTS to open source voice agents. Released August 3, 2026.Wed, 05 Aug 2026 00:00:00 GMTVoice AIVoice AgentsOpen Sourcehttps://lukeocodes.dev/til-ffmpeg-waveform-visualisationhttps://lukeocodes.dev/til-ffmpeg-waveform-visualisationffmpeg generates a waveform PNG from any audio file. Visualise silence gaps, volume levels, and speech patterns without a DAW.Tue, 04 Aug 2026 00:00:00 GMTTILEngineeringText-to-Speechhttps://lukeocodes.dev/voice-emotion-control-kakao-kanana-ohttps://lukeocodes.dev/voice-emotion-control-kakao-kanana-oVoice emotion control is moving to natural language prompts. Kakao's Kanana-o scores 94.50 on the Korean InstructTTSEval benchmark.Tue, 04 Aug 2026 00:00:00 GMTVoice AIText-to-SpeechOpinionhttps://lukeocodes.dev/eu-ai-act-voice-watermarkinghttps://lukeocodes.dev/eu-ai-act-voice-watermarkingEU AI Act voice watermarking rules took effect August 2, 2026. What TTS providers and voice developers must do to stay compliant.Mon, 03 Aug 2026 00:00:00 GMTVoice AISecurityText-to-Speechhttps://lukeocodes.dev/websocket-vs-rest-tts-voice-agentshttps://lukeocodes.dev/websocket-vs-rest-tts-voice-agentsChoosing between WebSocket and REST for your streaming TTS API changes your voice agent's latency floor. Here is how to pick the right protocol.Sun, 02 Aug 2026 00:00:00 GMTText-to-SpeechVoice AgentsStreaminghttps://lukeocodes.dev/smallest-ai-series-a-voice-4-0https://lukeocodes.dev/smallest-ai-series-a-voice-4-0Smallest.ai closed a $13M Series A for Voice 4.0 and Hydra. Their bet is that fast real-time agents need small speech models, not big LLMs.Sat, 01 Aug 2026 00:00:00 GMTVoice AIIndustryOpinionhttps://lukeocodes.dev/gpt-transcribe-context-hintshttps://lukeocodes.dev/gpt-transcribe-context-hintsOpenAI's GPT-Transcribe launched July 29, 2026 with prompt, keyword, and language hints. Free-form context lifted accuracy from 38.5% to 44.6%.Fri, 31 Jul 2026 00:00:00 GMTSpeech-to-TextVoice AIAPI Designhttps://lukeocodes.dev/grok-voice-2-price-risehttps://lukeocodes.dev/grok-voice-2-price-riseGrok Voice Think Fast 2.0 launched July 29, 2026 at $0.08/min, up from $0.05. On August 5 the grok-voice-latest alias migrates you automatically.Thu, 30 Jul 2026 00:00:00 GMTVoice AIVoice AgentsAPI Designhttps://lukeocodes.dev/fish-audio-52m-seed-s21-prohttps://lukeocodes.dev/fish-audio-52m-seed-s21-proFish Audio raised a $52M seed on July 28, 2026 with $21M ARR and 8M users. Its new S2.1 Pro model is closed, API-only. What that shift means for TTS.Wed, 29 Jul 2026 00:00:00 GMTText-to-SpeechVoice AIIndustryhttps://lukeocodes.dev/git-history-fixuphttps://lukeocodes.dev/git-history-fixupGit 2.55's experimental git history fixup folds staged changes into an earlier commit in one command. I built it from source and ran it.Tue, 28 Jul 2026 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/openai-presence-voice-agentshttps://lukeocodes.dev/openai-presence-voice-agentsOpenAI Presence deploys enterprise voice and chat agents, but only via OpenAI's own engineers. No API, no pricing, no self-serve. What that means.Tue, 28 Jul 2026 00:00:00 GMTVoice AIVoice AgentsOpinionhttps://lukeocodes.dev/agentforger-one-link-forges-insiderhttps://lukeocodes.dev/agentforger-one-link-forges-insiderZenity disclosed AgentForger, a ChatGPT Workspace Agents flaw where one phishing link forged a persistent AI insider. OpenAI fixed it in four days.Mon, 27 Jul 2026 00:00:00 GMTAISecurityOpinionhttps://lukeocodes.dev/k3-weights-drop-washington-distillationhttps://lukeocodes.dev/k3-weights-drop-washington-distillationMoonshot ships Kimi K3's 2.8 trillion parameter weights days after the US floated a ban and accused it of distilling Anthropic's Fable.Mon, 27 Jul 2026 00:00:00 GMTAIOpinionhttps://lukeocodes.dev/what-a-week-at-speechifyhttps://lukeocodes.dev/what-a-week-at-speechifyOne week at Speechify: Simba went multilingual, streaming TTS gained timestamps, voice agents learned to switch language mid-call, headers got renamed.Sun, 26 Jul 2026 00:00:00 GMTVoice AIText-to-SpeechAPIshttps://lukeocodes.dev/mai-voice-flash-opus-5-and-a-red-linehttps://lukeocodes.dev/mai-voice-flash-opus-5-and-a-red-lineMicrosoft MAI-Voice-2-Flash enters TTS at $15/M. Anthropic ships Opus 5 at half Fable's cost. OpenAI faces red-line questions after Hugging Face.Sat, 25 Jul 2026 00:00:00 GMTVoice AIText-to-SpeechIndustryhttps://lukeocodes.dev/mcp-goes-statelesshttps://lukeocodes.dev/mcp-goes-statelessMCP goes stateless on Monday: the 2026-07-28 spec drops the initialize handshake and session IDs. Here is what breaks, and the handler I wrote to test it.Fri, 24 Jul 2026 00:00:00 GMTAIEngineeringhttps://lukeocodes.dev/guardrails-locked-out-the-defendershttps://lukeocodes.dev/guardrails-locked-out-the-defendersAn AI agent breached Hugging Face, then the guardrails locked out the defenders: forensic prompts refused, while the attacker obeyed no usage policy at all.Thu, 23 Jul 2026 00:00:00 GMTAISecurityOpinionhttps://lukeocodes.dev/open-weights-eating-ai-best-open-tts-modelshttps://lukeocodes.dev/open-weights-eating-ai-best-open-tts-modelsDeepSeek V4 and Kimi K3 made this the biggest open-weight week AI has had. Here are the 7 best open TTS models, and the gap nobody mentions.Thu, 23 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/fortnite-real-time-tts-deployment-gaminghttps://lukeocodes.dev/fortnite-real-time-tts-deployment-gamingEpic Games gives 36 Fortnite characters AI voices on July 30, 2026, making it the biggest real-time TTS deployment gaming has seen.Wed, 22 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/five-voice-ai-stories-mid-july-2026https://lukeocodes.dev/five-voice-ai-stories-mid-july-2026Mid-July 2026 gave voice AI a new leaderboard king, a 70% Google price cut, a $22 billion valuation rumour, and an AI Gene Wilder.Tue, 21 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/qwen-audio-3-0-tts-plus-reviewhttps://lukeocodes.dev/qwen-audio-3-0-tts-plus-reviewAlibaba's Qwen-Audio-3.0-TTS-Plus tops the Artificial Analysis Speech Arena at 1,236 Elo from 1,305 blind votes. A review of what that buys.Tue, 21 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/the-rules-for-synthetic-voiceshttps://lukeocodes.dev/the-rules-for-synthetic-voicesIn one week, synthetic voices got rules at three layers of the stack: a TikTok Shop ban, platform policy, and government regulation.Mon, 20 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/brussels-handed-voice-assistant-google-would-never-sellhttps://lukeocodes.dev/brussels-handed-voice-assistant-google-would-never-sellThe EU's Digital Markets Act decisions of July 16, 2026 order Google to open Android to rival AI assistants, with certified voice access.Sat, 18 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/amd-text-to-speech-local-ai-stackhttps://lukeocodes.dev/amd-text-to-speech-local-ai-stackAMD's Lemonade 11.0 puts text-to-speech in the local AI stack by default: an OpenMOSS backend, voice cloning, and a dedicated TTS panel.Fri, 17 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/listeners-voted-ai-voices-wonhttps://lukeocodes.dev/listeners-voted-ai-voices-wonTwo mid-July 2026 studies found ordinary listeners can't reliably tell AI voices from human ones, and sometimes prefer the synthetic option.Thu, 16 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/tts-quality-no-single-numberhttps://lukeocodes.dev/tts-quality-no-single-numberTTS quality has no single metric. MOS scores cluster, Elo only tests short English clips, and TTS WER measures a different thing than STT.Wed, 15 Jul 2026 00:00:00 GMTText-to-SpeechVoice AIAPI Designhttps://lukeocodes.dev/til-tts-voices-curlhttps://lukeocodes.dev/til-tts-voices-curlOne curl command to compare TTS voice output side by side before you write any integration code. Handy for prototyping or auditing voice quality.Tue, 14 Jul 2026 00:00:00 GMTTILText-to-SpeechAPIshttps://lukeocodes.dev/un-geneva-gpt-5-6-ai-governancehttps://lukeocodes.dev/un-geneva-gpt-5-6-ai-governanceThe first UN AI governance dialogue brought 169 countries to Geneva as GPT-5.6 went public. Meta launched Muse Image and immediately faced a privacy backlash.Mon, 13 Jul 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/voice-ai-worth-billions-speech-nearly-freehttps://lukeocodes.dev/voice-ai-worth-billions-speech-nearly-freeIn two weeks of July 2026, ElevenLabs talked a $22 billion tender offer and Gradium raised $100 million while speech itself got nearly free.Sun, 12 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/gene-wilder-voice-back-paperworkhttps://lukeocodes.dev/gene-wilder-voice-back-paperworkNetflix is using an AI recreation of Gene Wilder’s voice in “Wonka’s The Golden Ticket,” a nine-episode reality competition [premiering September 23,…Sat, 11 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/gpt-live-failed-first-viral-testhttps://lukeocodes.dev/gpt-live-failed-first-viral-testOpenAI's GPT-Live launched July 8 and the internet found its weak spot in hours. TikToker Husk broke it with a spelling test, and the full-duplex interruptions areFri, 10 Jul 2026 00:00:00 GMTVoice AIText-to-SpeechOpinionhttps://lukeocodes.dev/openai-best-voice-model-developers-cant-touchhttps://lukeocodes.dev/openai-best-voice-model-developers-cant-touchOpenAI's GPT-Live-1 full-duplex voice models replaced Advanced Voice Mode in ChatGPT on July 8, 2026, but developers get no API access.Thu, 09 Jul 2026 00:00:00 GMTVoice AIhttps://lukeocodes.dev/pipecat-vs-livekit-agents-comparisonhttps://lukeocodes.dev/pipecat-vs-livekit-agents-comparisonPipecat and LiveKit Agents both run production voice agents, but they own different layers of the stack. Pick the wrong one and you pay for it in a rewrite.Wed, 08 Jul 2026 00:00:00 GMTVoice AIVoice AgentsDeveloper Experiencehttps://lukeocodes.dev/grok-voice-21-new-voices-price-pointhttps://lukeocodes.dev/grok-voice-21-new-voices-price-pointxAI added 21 multilingual voices, voice cloning from one minute of audio, and a no-code agent builder to Grok Voice at $0.05 per minute of audio.Tue, 07 Jul 2026 00:00:00 GMTVoice AIText-to-SpeechVoice Agentshttps://lukeocodes.dev/open-source-tts-edits-words-after-recordinghttps://lukeocodes.dev/open-source-tts-edits-words-after-recordingViiTorVoice-NAR is an open-source TTS model that can replace individual words inside finished audio without regenerating the surrounding content.Tue, 07 Jul 2026 00:00:00 GMTVoice AIText-to-SpeechOpen Sourcehttps://lukeocodes.dev/til-sox-play-terminal-audiohttps://lukeocodes.dev/til-sox-play-terminal-audioplay (from SoX) plays any audio file through your speakers with one command. No media player needed when you are already in the terminal.Tue, 07 Jul 2026 00:00:00 GMTTILEngineeringText-to-Speechhttps://lukeocodes.dev/pricing-wars-are-good-for-developershttps://lukeocodes.dev/pricing-wars-are-good-for-developersThree TTS providers changed pricing in the same week, all in one direction: down. Cheaper voice is good for developers, and the trend is not slowing.Mon, 06 Jul 2026 00:00:00 GMTOpinionText-to-Speechhttps://lukeocodes.dev/building-a-writing-routine-that-workshttps://lukeocodes.dev/building-a-writing-routine-that-worksA daily writing habit that finally works: one post a day, a weekly format rota, and a hard time box that forces the draft to exist.Sun, 05 Jul 2026 00:00:00 GMTDeveloper Experiencehttps://lukeocodes.dev/finding-the-rhythm-first-impressionshttps://lukeocodes.dev/finding-the-rhythm-first-impressionsFinding the rhythm two weeks into a new DevRel role: what surprised me about text-to-speech, what I was right about, and what I am still figuring out.Sun, 05 Jul 2026 00:00:00 GMTDeveloper ExperienceOpinionhttps://lukeocodes.dev/lessons-from-my-first-two-weeks-in-voice-aihttps://lukeocodes.dev/lessons-from-my-first-two-weeks-in-voice-aiTwo weeks in voice AI on the text-to-speech side: a new community, a new set of constraints, and a definition of quality nobody quite agrees on.Sun, 05 Jul 2026 00:00:00 GMTDeveloper ExperienceOpinionhttps://lukeocodes.dev/onboarding-at-a-new-company-what-i-wish-id-knownhttps://lukeocodes.dev/onboarding-at-a-new-company-what-i-wish-id-knownOnboarding at a new company after years at the same one: imposter feelings that hit harder, domain knowledge that transfers slowly, and remote loneliness.Sun, 05 Jul 2026 00:00:00 GMTDeveloper ExperienceCareerhttps://lukeocodes.dev/voice-ai-industry-thoughts-mid-2026https://lukeocodes.dev/voice-ai-industry-thoughts-mid-2026Quality convergence, pricing pressure, open-weight models, and the regulatory shift. The voice AI landscape halfway through 2026.Sun, 05 Jul 2026 00:00:00 GMTVoice AIOpinionhttps://lukeocodes.dev/what-surprised-me-about-tts-api-designhttps://lukeocodes.dev/what-surprised-me-about-tts-api-designAfter years of speech-to-text, TTS API design broke my assumptions: output parameters everywhere, SSML that fights you, and speech marks nobody mentions.Sun, 05 Jul 2026 00:00:00 GMTAPI DesignText-to-Speechhttps://lukeocodes.dev/working-in-public-vs-working-in-privatehttps://lukeocodes.dev/working-in-public-vs-working-in-privateDeveloper relations means producing content in public while the product is being built in private. That tension is harder to manage than I expected.Sun, 05 Jul 2026 00:00:00 GMTDeveloper ExperienceCareerhttps://lukeocodes.dev/five-voice-ai-stories-start-of-july-2026https://lukeocodes.dev/five-voice-ai-stories-start-of-july-2026The five voice AI stories that shaped early July: OpenAI's voice reasoning model, ElevenLabs at $22B, Deepgram going multilingual, and Gemini using a computer.Sat, 04 Jul 2026 00:00:00 GMTVoice AINewsText-to-Speechhttps://lukeocodes.dev/someone-asked-chatgpt-to-screamhttps://lukeocodes.dev/someone-asked-chatgpt-to-screamA viral TikTok showed ChatGPT's Advanced Voice Mode screaming on command. Two screeches, one awkward silence, and a lot of questions about what we just watched.Fri, 03 Jul 2026 00:00:00 GMTAIVoice AIhttps://lukeocodes.dev/what-voice-agent-pricing-revealshttps://lukeocodes.dev/what-voice-agent-pricing-revealsVoice agent platform pricing tells you more than cost. The pricing model reveals which layer of the stack each platform owns and what trade-offs you inherit.Thu, 02 Jul 2026 00:00:00 GMTVoice AIVoice AgentsAPI Designhttps://lukeocodes.dev/qwen-audio-3-0-tts-flash-alibabahttps://lukeocodes.dev/qwen-audio-3-0-tts-flash-alibabaAlibaba's Qwen-Audio-3.0-TTS Flash targets the real-time TTS market on price and latency. What it means for voice developers and the API field.Wed, 01 Jul 2026 00:00:00 GMTAIText-to-SpeechAPIshttps://lukeocodes.dev/til-clone-voice-speechify-apihttps://lukeocodes.dev/til-clone-voice-speechify-apiThe Speechify API creates a cloned voice from a 10-second audio sample with a single POST, returning a voice ID that works on any speech endpoint you already use.Tue, 30 Jun 2026 00:00:00 GMTTILText-to-SpeechAPIshttps://lukeocodes.dev/frontier-models-now-under-government-reviewhttps://lukeocodes.dev/frontier-models-now-under-government-reviewOpenAI released GPT-5.6 to 20 government-approved partners, Anthropic restored Mythos 5 to critical infrastructure, and a new AI review regime went live.Mon, 29 Jun 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/notes-from-my-first-week-at-speechifyhttps://lukeocodes.dev/notes-from-my-first-week-at-speechifyFirst week as Speechify's Head of DevRel: a TTS cookbook, two developer guides, and watching AI shift to government-gated releases.Sun, 28 Jun 2026 00:00:00 GMTDeveloper ExperienceVoice AIIndustryhttps://lukeocodes.dev/voice-cloning-open-source-enterprise-voice-agentshttps://lukeocodes.dev/voice-cloning-open-source-enterprise-voice-agentsNetEase open-sourced voice cloning from 3 seconds of audio. ElevenLabs partnered with IBM and added SynthID. Coval raised $28M. UK laws are unfit.Sat, 27 Jun 2026 00:00:00 GMTVoice AIText-to-SpeechIndustryhttps://lukeocodes.dev/my-voice-cloned-day-one-speechifyhttps://lukeocodes.dev/my-voice-cloned-day-one-speechifyDay one at Speechify and my voice was cloned before I finished onboarding. Hearing yourself through a TTS engine is a rite of passage I was not ready for.Fri, 26 Jun 2026 00:00:00 GMTVoice AIText-to-Speechhttps://lukeocodes.dev/voice-ai-competition-shifted-from-models-to-platformshttps://lukeocodes.dev/voice-ai-competition-shifted-from-models-to-platformsTTS model quality converged by June 2026. The real competitive moat shifted to developer experience, platform integration, and compliance tooling.Thu, 25 Jun 2026 00:00:00 GMTVoice AIText-to-SpeechIndustryhttps://lukeocodes.dev/tts-latency-time-to-first-audiohttps://lukeocodes.dev/tts-latency-time-to-first-audioA deep dive into Time to First Audio, the metric that defines voice agent responsiveness, and what happens in the latency pipeline from text to speech.Wed, 24 Jun 2026 00:00:00 GMTVoice AIText-to-SpeechDeveloper Experiencehttps://lukeocodes.dev/til-speech-marks-speechify-apihttps://lukeocodes.dev/til-speech-marks-speechify-apiEvery Speechify TTS response includes word-level timing data alongside the audio. Here is how to read speech marks and what you can do with them.Tue, 23 Jun 2026 00:00:00 GMTTILText-to-SpeechAPIshttps://lukeocodes.dev/inference-costs-dropping-changes-everythinghttps://lukeocodes.dev/inference-costs-dropping-changes-everythingOpenAI's custom chip, SpaceX compute deals, and falling token prices are pushing inference costs down faster than most developers have noticed.Mon, 22 Jun 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/six-stories-shaping-voice-ai-mid-june-2026https://lukeocodes.dev/six-stories-shaping-voice-ai-mid-june-2026Microsoft MAI-Voice-2, Google live translation, DeepL bought Mixhalo, and open-weight TTS models kept shrinking. Six stories from a busy month in voice AI.Sat, 20 Jun 2026 00:00:00 GMTVoice AIText-to-SpeechIndustryhttps://lukeocodes.dev/when-speech-to-text-hears-something-elsehttps://lukeocodes.dev/when-speech-to-text-hears-something-elseThe funniest speech-to-text transcriptions from real API traffic: a meowing cat asking for help, a quiche that became keys, and why models guess.Fri, 19 Jun 2026 00:00:00 GMTDeveloper ExperienceVoice AIhttps://lukeocodes.dev/voice-data-residency-decides-where-your-agent-runshttps://lukeocodes.dev/voice-data-residency-decides-where-your-agent-runsVoice data residency decides where speech APIs process audio. Deepgram Australia went live June 17, 2026, shaping how teams pick STT and TTS providers.Thu, 18 Jun 2026 00:00:00 GMTVoice AISpeech-to-TextText-to-Speechhttps://lukeocodes.dev/streaming-tts-rethinking-audio-pipelinehttps://lukeocodes.dev/streaming-tts-rethinking-audio-pipelineStreaming TTS changes what voice applications expect from audio APIs. Time-to-first-byte drops, complexity moves into buffer management and chunk boundaries, andWed, 17 Jun 2026 00:00:00 GMTVoice AIText-to-SpeechDeveloper Experiencehttps://lukeocodes.dev/a-rising-tide-lifts-all-boatshttps://lukeocodes.dev/a-rising-tide-lifts-all-boatsA rising tide lifts all boats, but only if everyone has a boat. On neurodivergence at work, the user manual nobody reads, and being told to just figure it out.Tue, 16 Jun 2026 00:00:00 GMTOpinionhttps://lukeocodes.dev/export-controls-took-down-claude-fable-5https://lukeocodes.dev/export-controls-took-down-claude-fable-5An export control directive shut down Claude Fable 5 globally. The first government shutdown of a deployed AI model and what developers should know.Mon, 15 Jun 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/a-frontier-model-goes-dark-voice-ai-keeps-movinghttps://lukeocodes.dev/a-frontier-model-goes-dark-voice-ai-keeps-movingA frontier model goes dark: Fable 5 pulled 72 hours after launch by export directive, while Microsoft and Deepgram carried on shipping voice infrastructure.Sun, 14 Jun 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/anthropic-ipo-nvidia-open-weights-ai-36b-bethttps://lukeocodes.dev/anthropic-ipo-nvidia-open-weights-ai-36b-betFable 5 ate the news cycle, but that same week saw Anthropic's IPO, NVIDIA's open model, and a chip deal reshaping AI finance.Sat, 13 Jun 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/when-your-voice-agent-cant-understand-an-accenthttps://lukeocodes.dev/when-your-voice-agent-cant-understand-an-accentMcDonald's killed its AI drive-thru in 2024 because it could not understand an accent. Two years on, the industry is still working out why.Fri, 12 Jun 2026 00:00:00 GMTVoice AIDeveloper ExperienceOpinionhttps://lukeocodes.dev/three-stt-strategies-one-markethttps://lukeocodes.dev/three-stt-strategies-one-marketBy June 2026 accuracy stopped deciding the STT market. Multilingual support, turn detection and platform integration became the real differentiators.Thu, 11 Jun 2026 00:00:00 GMTVoice AISpeech-to-TextIndustryhttps://lukeocodes.dev/inside-the-voice-agent-pipelinehttps://lukeocodes.dev/inside-the-voice-agent-pipelineHow STT transcribes audio, an LLM generates responses, and streaming TTS speaks them back. A technical breakdown of the real-time pipeline behind voice agents inWed, 10 Jun 2026 00:00:00 GMTVoice AIDeveloper Experiencehttps://lukeocodes.dev/til-flux-turn-detection-deepgramhttps://lukeocodes.dev/til-flux-turn-detection-deepgramDeepgram Flux turn detection replaces VAD and silence timeouts with model-native EndOfTurn events.Tue, 09 Jun 2026 00:00:00 GMTVoice AISpeech-to-TextTILhttps://lukeocodes.dev/microsoft-mai-stanford-ai-index-580-billionhttps://lukeocodes.dev/microsoft-mai-stanford-ai-index-580-billionAI funding hit $581.7B in 2025. Microsoft shipped 7 MAI models. Apple chose privacy at WWDC. Deepgram kept shipping. Stories from a week that shifted AI.Mon, 08 Jun 2026 00:00:00 GMTAINewsIndustryhttps://lukeocodes.dev/sunday-roundup-afterthoughts-on-productivity-and-pacehttps://lukeocodes.dev/sunday-roundup-afterthoughts-on-productivity-and-paceA short Sunday roundup on writing about ADHD and productivity, what Deepgram shipped this week, and what is coming next.Sun, 07 Jun 2026 00:00:00 GMTDeveloper ExperienceCareerhttps://lukeocodes.dev/six-tools-production-voice-agentshttps://lukeocodes.dev/six-tools-production-voice-agentsBuilding a production voice agent takes more than an API key. Here are six tools I reached for daily at Deepgram, from streaming STT to async Python.Sat, 06 Jun 2026 00:00:00 GMTDeveloper ExperienceEngineeringAIhttps://lukeocodes.dev/testing-voice-ai-publichttps://lukeocodes.dev/testing-voice-ai-publicBuilding voice AI means reading test sentences aloud in coffee shops, on trains, and in meetings you forgot to mute. It looks as ridiculous as it sounds.Fri, 05 Jun 2026 00:00:00 GMTVoice AIDeveloper Experiencehttps://lukeocodes.dev/im-not-apologising-for-being-productivehttps://lukeocodes.dev/im-not-apologising-for-being-productiveTwenty thousand more corrective messages by the age of ten is what an ADHD childhood costs. I am done apologising for being productive.Thu, 04 Jun 2026 00:00:00 GMTOpinionhttps://lukeocodes.dev/when-sdks-write-themselveshttps://lukeocodes.dev/when-sdks-write-themselvesDeepgram swapped hand-rolled SDKs for spec-first generation with Fern, so five languages write themselves from one OpenAPI and AsyncAPI source.Wed, 03 Jun 2026 00:00:00 GMTDeveloper ExperienceAPI DesignVoice AIhttps://lukeocodes.dev/til-base64-inline-audiohttps://lukeocodes.dev/til-base64-inline-audiobase64 encodes any file into text-safe output. Embed small audio clips or images inline in JSON payloads without hosting them somewhere.Tue, 02 Jun 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-deepgram-keyterm-promptinghttps://lukeocodes.dev/til-deepgram-keyterm-promptingImprove transcription accuracy for specialised terminology, product names, and technical jargon using Deepgram's keyterm prompting.Tue, 02 Jun 2026 00:00:00 GMTTILSpeech-to-TextAPIshttps://lukeocodes.dev/enterprise-ai-spending-37bhttps://lukeocodes.dev/enterprise-ai-spending-37bEnterprise generative AI spending hit $37 billion in 2025, up 3.2x from the prior year. The trend reshaping the industry faster than any model release.Mon, 01 Jun 2026 00:00:00 GMTAIIndustryhttps://lukeocodes.dev/sunday-roundup-may-25-31-2026https://lukeocodes.dev/sunday-roundup-may-25-31-2026Two posts from late May: what multilingual voice agents cost, and why contributing guides exclude newcomers. Plus the rest of the month's roundup.Sun, 31 May 2026 00:00:00 GMTVoice AIDeveloper ExperienceAIhttps://lukeocodes.dev/5-command-line-tools-for-shipping-voice-agentshttps://lukeocodes.dev/5-command-line-tools-for-shipping-voice-agentsBuilding voice agents means living in a terminal. Here are five CLI tools I use every day for audio debugging, API testing, and latency measurement.Sat, 30 May 2026 00:00:00 GMTDeveloper ExperienceVoice AIEngineeringhttps://lukeocodes.dev/my-zshrc-has-more-aliaseshttps://lukeocodes.dev/my-zshrc-has-more-aliasesI opened my .zshrc for the first time in months and found aliases I don't remember writing, for tools I don't remember installing. This is what I found.Fri, 29 May 2026 00:00:00 GMTDeveloper ExperienceEngineeringhttps://lukeocodes.dev/the-inequity-of-contributing-guideshttps://lukeocodes.dev/the-inequity-of-contributing-guidesYour CONTRIBUTING.md isn't welcoming. It's a gatekeeping document. Most open source contribution guides exclude the people they claim to want.Thu, 28 May 2026 00:00:00 GMTOpinionhttps://lukeocodes.dev/what-multilingual-voice-agents-costhttps://lukeocodes.dev/what-multilingual-voice-agents-costBuilding a voice agent that handles ten languages without falling over is harder than it sounds. Here's what the architecture actually costs.Wed, 27 May 2026 00:00:00 GMTVoice AIEngineeringDeveloper Experiencehttps://lukeocodes.dev/til-debugging-pipelines-teehttps://lukeocodes.dev/til-debugging-pipelines-teetee reads from stdin and writes to stdout and files at the same time. Debug complex shell pipelines and save intermediate data without breaking the chain.Tue, 26 May 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/when-ai-development-tools-stopped-being-optionalhttps://lukeocodes.dev/when-ai-development-tools-stopped-being-optionalGoogle I/O, Anthropic's London event, and OpenAI GPT-5.5 all landed in the same window. AI development tools crossed from experimental to essential.Mon, 25 May 2026 00:00:00 GMTAIIndustryDeveloper Experiencehttps://lukeocodes.dev/sunday-roundup-may-18-24-2026https://lukeocodes.dev/sunday-roundup-may-18-24-2026One post on voice API design in a week when Google I/O and Anthropic's London event reshaped AI. The roundup for May 2026.Sun, 24 May 2026 00:00:00 GMTDeveloper ExperienceAPI DesignVoice AIhttps://lukeocodes.dev/5-api-design-decisions-shape-voice-ai-devxhttps://lukeocodes.dev/5-api-design-decisions-shape-voice-ai-devxError payloads, streaming edge cases, and latency limits all shape how developers interact with voice APIs. Here are five patterns I have seen matter most.Sat, 23 May 2026 00:00:00 GMTDeveloper ExperienceAPI DesignVoice AIhttps://lukeocodes.dev/testing-10-languages-macos-sayhttps://lukeocodes.dev/testing-10-languages-macos-sayThe macOS say command generates speech in ten languages. I used it to test a multilingual STT model without installing any audio tooling.Fri, 22 May 2026 00:00:00 GMTTILEngineeringVoice AIhttps://lukeocodes.dev/five-sdks-one-streaming-api-maintenance-retrospectivehttps://lukeocodes.dev/five-sdks-one-streaming-api-maintenance-retrospectiveMaintaining five SDKs for one streaming voice API taught me things about developer experience that no spec review ever could. Here is what I learned.Thu, 21 May 2026 00:00:00 GMTDeveloper ExperienceEngineeringOpen Sourcehttps://lukeocodes.dev/what-nobody-tells-you-about-audio-speech-to-texthttps://lukeocodes.dev/what-nobody-tells-you-about-audio-speech-to-textProduction speech-to-text lives or dies on the audio: sample rate, encoding, channel mixing, chunk size. The docs skip it, so here is what matters.Wed, 20 May 2026 00:00:00 GMTDeveloper ExperienceEngineeringVoice AIhttps://lukeocodes.dev/til-stt-curlhttps://lukeocodes.dev/til-stt-curlOne curl command transcribes audio through any REST-based STT API. No SDK, no imports, just your audio file and an API key.Tue, 19 May 2026 00:00:00 GMTTILSpeech-to-TextAPIshttps://lukeocodes.dev/voice-ai-apis-single-call-platformhttps://lukeocodes.dev/voice-ai-apis-single-call-platformThe week of May 11, 2026, three separate announcements pushed voice AI from multi-service pipelines toward unified single-call APIs.Mon, 18 May 2026 00:00:00 GMTVoice AIAPIsIndustryhttps://lukeocodes.dev/sunday-roundup-may-11-16-2026https://lukeocodes.dev/sunday-roundup-may-11-16-2026Four posts from the week of May 11 in one Sunday roundup: afinfo, speaker diarization, Slack culture on remote teams, and ffmpeg for voice AI.Sun, 17 May 2026 00:00:00 GMTDeveloper ExperienceVoice AIText-to-Speechhttps://lukeocodes.dev/5-sdk-anti-patterns-voice-aihttps://lukeocodes.dev/5-sdk-anti-patterns-voice-aiMaintaining SDKs across five languages taught me the same mistakes appear every time. Here are the five patterns I'd redesign first, and why they matter for voiceSat, 16 May 2026 00:00:00 GMTDeveloper ExperienceAPI DesignVoice AIhttps://lukeocodes.dev/ffmpeg-voice-ai-debuggerhttps://lukeocodes.dev/ffmpeg-voice-ai-debuggerThe first time I debugged a voice AI integration, ffmpeg saved me. It is still the most useful tool in my kit, and it is not even designed for voice.Fri, 15 May 2026 00:00:00 GMTDeveloper ExperienceVoice AIEngineeringhttps://lukeocodes.dev/slack-is-your-remote-teams-social-mediahttps://lukeocodes.dev/slack-is-your-remote-teams-social-mediaI've worked remotely for nine years, four and a half at Deepgram. Slack is your remote team's social media, and you should treat it that way.Thu, 14 May 2026 00:00:00 GMTOpinionhttps://lukeocodes.dev/why-speaker-diarization-hardest-problem-voice-aihttps://lukeocodes.dev/why-speaker-diarization-hardest-problem-voice-aiSpeaker diarization figures out who spoke when. It sounds simple. It is not. Here is why it breaks, and what it takes to get right.Wed, 13 May 2026 00:00:00 GMTVoice AISpeech-to-TextDeveloper Experiencehttps://lukeocodes.dev/til-afinfo-audio-inspectionhttps://lukeocodes.dev/til-afinfo-audio-inspectionafinfo prints every audio file property macOS knows about: sample rate, channels, bit depth, duration, and codec. Essential for debugging STT pipeline issues.Tue, 12 May 2026 00:00:00 GMTTILVoice AIEngineeringhttps://lukeocodes.dev/infrastructure-race-changing-ai-usehttps://lukeocodes.dev/infrastructure-race-changing-ai-useAnthropic's SpaceX deal, OpenAI's new voice models, and record venture funding made the week of May 11 the moment AI infrastructure became the story.Mon, 11 May 2026 00:00:00 GMTAIIndustryNewshttps://lukeocodes.dev/sunday-roundup-may-4-10-2026https://lukeocodes.dev/sunday-roundup-may-4-10-2026One TIL post went up this week. A landmark compute deal reshaped AI infrastructure. Here is the Sunday roundup for May 4-10, 2026.Sun, 10 May 2026 00:00:00 GMTAIIndustryOpinionhttps://lukeocodes.dev/5-developer-experience-wins-voice-ai-toolinghttps://lukeocodes.dev/5-developer-experience-wins-voice-ai-toolingError messages, timeout behaviour and observability: five developer experience wins that separate a great voice AI API from one that eats your Friday night.Sat, 09 May 2026 00:00:00 GMTDeveloper ExperienceAPI DesignVoice AIhttps://lukeocodes.dev/friday-fun-inspecting-audio-files-terminalhttps://lukeocodes.dev/friday-fun-inspecting-audio-files-terminalsoxi shows audio file metadata like sample rate, duration, and channels from the command line. Inspect files before sending them to any voice API.Fri, 08 May 2026 00:00:00 GMTTILEngineeringVoice AIhttps://lukeocodes.dev/developer-discord-voice-ai-lessonshttps://lukeocodes.dev/developer-discord-voice-ai-lessonsFour years running a developer Discord for a speech API surfaced the same problems on repeat: audio format traps, silent failures, and unasked questions.Thu, 07 May 2026 00:00:00 GMTDeveloper ExperienceVoice AICommunityhttps://lukeocodes.dev/what-makes-voice-ai-sdks-differenthttps://lukeocodes.dev/what-makes-voice-ai-sdks-differentBuilding SDKs for streaming voice APIs means managing WebSocket state, audio buffers, reconnection, and backpressure. REST client patterns break immediately.Wed, 06 May 2026 00:00:00 GMTDeveloper ExperienceVoice AIEngineeringhttps://lukeocodes.dev/til-curl-w-response-timeshttps://lukeocodes.dev/til-curl-w-response-timescurl -w prints DNS, connect, TLS and response times after every request, so you can profile API latency from the terminal without another tool.Tue, 05 May 2026 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/ai-model-moat-endhttps://lukeocodes.dev/ai-model-moat-endBy spring 2026 the model stopped being the moat: frontier quality converged, and the real advantage moved to developer experience and API design.Mon, 04 May 2026 00:00:00 GMTAIIndustryAPI Designhttps://lukeocodes.dev/sunday-roundup-may-3-2026https://lukeocodes.dev/sunday-roundup-may-3-2026One post on voice AI debugging habits, plus Flux going multilingual, AssemblyAI's Voice Agent API and Twilio Conversation Relay, from early May 2026.Sun, 03 May 2026 00:00:00 GMTVoice AIText-to-SpeechDeveloper Experiencehttps://lukeocodes.dev/5-habits-voice-ai-debugginghttps://lukeocodes.dev/5-habits-voice-ai-debuggingMost voice AI debugging time goes to problems that follow a pattern. Here are five habits I built at Deepgram that catch those patterns before they become incidents.Sat, 02 May 2026 00:00:00 GMTEngineeringDeveloper ExperienceVoice AIhttps://lukeocodes.dev/bat-is-cat-with-syntax-highlightinghttps://lukeocodes.dev/bat-is-cat-with-syntax-highlightingbat shows file contents with syntax highlighting, line numbers, and a pager. It replaces cat with the same muscle memory and a lot more useful output.Fri, 01 May 2026 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/invisible-work-voice-ai-sdkshttps://lukeocodes.dev/invisible-work-voice-ai-sdksFour years of maintaining voice AI SDKs across half a dozen languages. The work that never makes the changelog.Thu, 30 Apr 2026 00:00:00 GMTDeveloper ExperienceOpen SourceEngineeringhttps://lukeocodes.dev/how-streaming-speech-recognition-workshttps://lukeocodes.dev/how-streaming-speech-recognition-worksStreaming speech-to-text sends audio chunks over WebSocket. Acoustic models, language models, and decoders explain the latency-accuracy tradeoff.Wed, 29 Apr 2026 00:00:00 GMTEngineeringAISpeech-to-Texthttps://lukeocodes.dev/til-ffprobe-audio-inspectionhttps://lukeocodes.dev/til-ffprobe-audio-inspectionffprobe shows sample rate, channels, duration, and codec of any audio file. Check audio format before sending it to a speech-to-text API.Tue, 28 Apr 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/two-faces-of-ai-progresshttps://lukeocodes.dev/two-faces-of-ai-progressOpenAI shipped persistent workspace agents; Anthropic locked away Mythos 5. Two faces of AI in one week, and two answers to what shipping means.Mon, 27 Apr 2026 00:00:00 GMTAIIndustryOpinionhttps://lukeocodes.dev/sunday-roundup-april-26-2026https://lukeocodes.dev/sunday-roundup-april-26-2026Daily publishing starts here. The Sunday roundup for April 26: OpenAI workspace agents, Anthropic Mythos 5, and what was shipping inside Deepgram.Sun, 26 Apr 2026 00:00:00 GMTDeveloper ExperienceVoice AIAIhttps://lukeocodes.dev/5-questions-streaming-api-integrationhttps://lukeocodes.dev/5-questions-streaming-api-integrationConnection drops, backpressure, and wire formats. Five questions I ask every streaming API before building on it, learned from voice AI integrations.Sat, 25 Apr 2026 00:00:00 GMTDeveloper ExperienceAPI DesignEngineeringhttps://lukeocodes.dev/friday-fun-generating-test-tones-voice-aihttps://lukeocodes.dev/friday-fun-generating-test-tones-voice-aisox synth generates test audio files from scratch at any sample rate and duration. No microphone needed for speech API development.Fri, 24 Apr 2026 00:00:00 GMTTILEngineeringVoice AIhttps://lukeocodes.dev/79-til-posts-laterhttps://lukeocodes.dev/79-til-posts-laterWhat 79 TIL posts over six and a half years taught me about consistency, keeping the scope small, and writing developer content people actually finish.Thu, 23 Apr 2026 00:00:00 GMTDeveloper ExperienceCareerhttps://lukeocodes.dev/inside-the-streaming-cascade-powering-voice-aihttps://lukeocodes.dev/inside-the-streaming-cascade-powering-voice-aiReal-time voice agents chain three models over streaming connections. Here's how the cascade architecture works and where every millisecond goes.Wed, 22 Apr 2026 00:00:00 GMTVoice AIEngineeringStreaminghttps://lukeocodes.dev/til-pv-pipe-viewerhttps://lukeocodes.dev/til-pv-pipe-viewerpv (Pipe Viewer) sits between two commands in a pipeline and reports how fast data is moving. It is a progress bar for pipes.Tue, 21 Apr 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/ai-release-cadence-developer-problemhttps://lukeocodes.dev/ai-release-cadence-developer-problemThree frontier models in two weeks. The release cadence creates evaluation churn, integration instability, and fatigue for developers building on AI.Mon, 20 Apr 2026 00:00:00 GMTAIDeveloper ExperienceIndustryhttps://lukeocodes.dev/sunday-roundup-april-19-2026https://lukeocodes.dev/sunday-roundup-april-19-2026Two posts from the first weekend of daily writing: terminal STT streaming, WebSocket audio patterns and GPT-5.4-Cyber, in this Sunday roundup for April.Sun, 19 Apr 2026 00:00:00 GMTDeveloper ExperienceEngineeringVoice AIhttps://lukeocodes.dev/five-websocket-patterns-real-time-audio-streaminghttps://lukeocodes.dev/five-websocket-patterns-real-time-audio-streamingStreaming audio WebSockets need reconnect logic, backpressure, heartbeats, and graceful shutdown. Five patterns covering the full connection lifecycle.Sat, 18 Apr 2026 00:00:00 GMTEngineeringStreamingVoice AIhttps://lukeocodes.dev/friday-fun-live-speech-to-text-terminalhttps://lukeocodes.dev/friday-fun-live-speech-to-text-terminalPipe rec into websocat and get live speech to text in your terminal as you talk. Two CLI tools, one WebSocket, no GUI and no upload-and-wait loop.Fri, 17 Apr 2026 00:00:00 GMTTILEngineeringVoice AIhttps://lukeocodes.dev/sdks-for-streaming-apis-are-differenthttps://lukeocodes.dev/sdks-for-streaming-apis-are-differentREST SDK patterns stop working when the connection never closes. SDKs for streaming APIs need reconnect logic, backpressure, and graceful shutdown built in.Thu, 16 Apr 2026 00:00:00 GMTEngineeringAPI DesignStreaminghttps://lukeocodes.dev/til-diff-y-side-by-sidehttps://lukeocodes.dev/til-diff-y-side-by-sidediff -y prints two files side by side with differences highlighted. Spot what changed in a config file without looking at two separate tabs.Tue, 07 Apr 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-ping-latency-testinghttps://lukeocodes.dev/til-ping-latency-testingping -s sends packets larger than the default 56 bytes. Test how your connection handles audio-sized payloads before blaming the API.Tue, 03 Mar 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-tsx-typescript-nodehttps://lukeocodes.dev/til-tsx-typescript-nodetsx executes TypeScript files with zero config using esbuild under the hood. Faster than ts-node and handles ESM and CJS automatically.Tue, 03 Feb 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-shell-chaining-operatorshttps://lukeocodes.dev/til-shell-chaining-operatorsChaining shell commands with && runs the next only on success, ; runs it regardless, and || runs it only on failure. Pick wrong and CI hides a broken build.Tue, 06 Jan 2026 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-lsof-listening-portshttps://lukeocodes.dev/til-lsof-listening-portslsof -i :PORT shows which process is holding a port. End the 'what is already running on 3000' guessing game for good.Tue, 02 Dec 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-zcat-gzip-streaminghttps://lukeocodes.dev/til-zcat-gzip-streamingzcat streams a gzip file straight to stdout without writing a temp copy. Read compressed logs, CSVs, or JSON directly into your pipeline.Tue, 04 Nov 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-diff-r-directory-comparisonhttps://lukeocodes.dev/til-diff-r-directory-comparisondiff -r compares two directories recursively, showing every file that differs. Verify that a build output matches between two branches.Tue, 07 Oct 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-mkcert-local-httpshttps://lukeocodes.dev/til-mkcert-local-httpsmkcert creates locally-trusted TLS certificates in one command. Your browser trusts them instantly — no more self-signed cert warnings.Tue, 02 Sep 2025 00:00:00 GMTTILEngineeringSecurityhttps://lukeocodes.dev/til-ts-node-watch-modehttps://lukeocodes.dev/til-ts-node-watch-modets-node compiles and executes TypeScript in memory, so quick scripts and SDK examples run with no build step and no tsc --watch loop to babysit.Tue, 05 Aug 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-du-disk-usagehttps://lukeocodes.dev/til-du-disk-usagedu -sh reports disk usage per directory in human-readable form, so you can find what is filling a drive without clicking through a GUI.Tue, 01 Jul 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-sort-u-deduplicatehttps://lukeocodes.dev/til-sort-u-deduplicatesort -u sorts and deduplicates lines in a single pass. Clean up word lists, logs, and API response extracts without writing a throwaway script.Tue, 03 Jun 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-column-terminal-tableshttps://lukeocodes.dev/til-column-terminal-tablescolumn -t aligns whitespace-separated data into clean columns. Pipe any command output through it for instantly readable tables.Tue, 06 May 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-wget-recursive-downloadhttps://lukeocodes.dev/til-wget-recursive-downloadwget -r downloads an entire site recursively. Useful for offline reference copies of documentation when you are without internet.Tue, 01 Apr 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-typescript-project-referenceshttps://lukeocodes.dev/til-typescript-project-referencesTypeScript project references let you split a codebase into composable packages. Each reference builds independently and incremental builds get faster.Tue, 04 Mar 2025 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-gh-aliases-github-workflowshttps://lukeocodes.dev/til-gh-aliases-github-workflowsgh alias set maps custom shortcuts to any gh command. Common workflows become two-word commands instead of multi-flag incantations.Tue, 04 Feb 2025 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/til-jq-json-payloads-shellhttps://lukeocodes.dev/til-jq-json-payloads-shelljq builds valid JSON payloads in shell scripts straight from variables, so a missing quote or an unescaped newline never breaks a request again.Tue, 07 Jan 2025 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-openssl-certificate-expiryhttps://lukeocodes.dev/til-openssl-certificate-expiryopenssl connects to any TLS endpoint and prints the certificate details including expiry date. Automate cert monitoring in a cron job.Tue, 03 Dec 2024 00:00:00 GMTTILEngineeringSecurityhttps://lukeocodes.dev/open-letter-aihttps://lukeocodes.dev/open-letter-aiAn open letter on AI as a tool rather than a verdict: what it means for creativity, for programming, and for staying human through the next revolution.Fri, 15 Nov 2024 00:00:00 GMTAIhttps://lukeocodes.dev/til-hyperfine-benchmarkinghttps://lukeocodes.dev/til-hyperfine-benchmarkinghyperfine benchmarks a command over many runs and reports min, max, mean and standard deviation, so you can compare tools with real confidence.Tue, 05 Nov 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/open-letter-politicshttps://lukeocodes.dev/open-letter-politicsAn open letter on politics: why neutrality is a choice too, what media manipulation costs democracy, and why I judge people by the harm they will accept.Fri, 01 Nov 2024 00:00:00 GMTOpinionhttps://lukeocodes.dev/til-tree-directory-structurehttps://lukeocodes.dev/til-tree-directory-structuretree prints a directory as a nested tree diagram. Perfect for documenting project layouts in READMEs or during onboarding walkthroughs.Tue, 01 Oct 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-git-add-p-interactivehttps://lukeocodes.dev/til-git-add-p-interactivegit add -p shows each change hunk by hunk and asks whether to stage it. Commit only the relevant parts of a messy working tree.Tue, 03 Sep 2024 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/til-entr-auto-commandshttps://lukeocodes.dev/til-entr-auto-commandsentr runs a command every time a watched file changes. Pipe a list of files in, get automatic re-runs out. Lighter than nodemon.Tue, 06 Aug 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-podman-docker-alternativehttps://lukeocodes.dev/til-podman-docker-alternativePodman runs OCI containers with the same CLI as Docker but daemonless and rootless by default. No Docker Desktop needed.Tue, 02 Jul 2024 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/til-nc-netcat-network-debugginghttps://lukeocodes.dev/til-nc-netcat-network-debuggingnc, better known as netcat, opens raw TCP connections from the terminal: check whether a port is open or send a handcrafted HTTP request.Tue, 04 Jun 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-pandoc-markdown-to-pdfhttps://lukeocodes.dev/til-pandoc-markdown-to-pdfpandoc turns any Markdown file into a styled PDF with one command. Great for generating docs that non-technical stakeholders can open.Tue, 07 May 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-grep-perl-regexhttps://lukeocodes.dev/til-grep-perl-regexgrep -P gives you full Perl regex syntax — lookaheads, non-capturing groups, and character class shortcuts the basic syntax lacks.Tue, 02 Apr 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-websocat-websocket-testinghttps://lukeocodes.dev/til-websocat-websocket-testingwebsocat connects to WebSocket servers from the terminal and pipes data in both directions. Better than wscat for automated testing.Tue, 05 Mar 2024 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-pyproject-toml-python-packaginghttps://lukeocodes.dev/til-pyproject-toml-python-packagingpyproject.toml replaces setup.py as the standard Python packaging config. One file declares dependencies, build system, and metadata.Tue, 06 Feb 2024 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/til-npm-link-local-testinghttps://lukeocodes.dev/til-npm-link-local-testingnpm link creates a symlink so your local package behaves like an installed one. Test SDK changes in a real project before publishing.Tue, 02 Jan 2024 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/til-pgrep-pkill-process-managementhttps://lukeocodes.dev/til-pgrep-pkill-process-managementpgrep finds processes by name. pkill kills them. No more ps aux | grep to find and kill a runaway Node process.Tue, 05 Dec 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-asdf-version-managerhttps://lukeocodes.dev/til-asdf-version-managerasdf manages multiple language runtimes from one tool. A single .tool-versions file pins Node.js, Python, and everything else per project.Tue, 07 Nov 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-inotifywait-file-monitoringhttps://lukeocodes.dev/til-inotifywait-file-monitoringinotifywait blocks until a file or directory changes, then exits. Use it in scripts to trigger actions when new files appear.Tue, 03 Oct 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-httpie-api-debugginghttps://lukeocodes.dev/til-httpie-api-debugginghttpie formats JSON responses, highlights syntax, and shows headers by default. One command is often clearer than curl for exploratory API work.Tue, 05 Sep 2023 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-termtosvg-terminal-gifshttps://lukeocodes.dev/til-termtosvg-terminal-gifstermtosvg records your terminal session and outputs an SVG file. Embeddable in docs, zoomable, and smaller than a GIF.Tue, 01 Aug 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-worker-threads-nodejshttps://lukeocodes.dev/til-worker-threads-nodejsworker_threads runs JavaScript in parallel without the overhead of child processes. Distribute CPU-heavy work across available cores.Tue, 04 Jul 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-sox-sample-rate-wavhttps://lukeocodes.dev/til-sox-sample-rate-wavsox generates or converts audio to any sample rate, bit depth, and channel count. Create test fixtures that match your API's exact requirements.Tue, 06 Jun 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-find-exec-batch-operationshttps://lukeocodes.dev/til-find-exec-batch-operationsfind -exec runs any command on every matching file. Bulk rename, convert, or delete without writing a loop or a script.Tue, 02 May 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-pdfunite-merge-pdfshttps://lukeocodes.dev/til-pdfunite-merge-pdfspdfunite combines multiple PDFs into one in a single command. No Adobe subscription, no drag-and-drop, just file paths.Tue, 04 Apr 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-exponential-backoff-typescripthttps://lukeocodes.dev/til-exponential-backoff-typescriptA retry loop with exponential backoff and jitter absorbs transient API failures without hammering a server that is already struggling.Tue, 07 Mar 2023 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-fdupes-duplicate-fileshttps://lukeocodes.dev/til-fdupes-duplicate-filesfdupes scans a directory tree for duplicate files by comparing checksums. Reclaim disk space from accidental copies and repeated downloads.Tue, 07 Feb 2023 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-awk-stt-timestampshttps://lukeocodes.dev/til-awk-stt-timestampsawk parses word-level timestamps from STT output in one line. Extract, filter, and reformat without importing a CSV library.Tue, 03 Jan 2023 00:00:00 GMTTILEngineeringSpeech-to-Texthttps://lukeocodes.dev/til-set-e-set-x-bashhttps://lukeocodes.dev/til-set-e-set-x-bashset -e exits on any error. set -x prints every command before running it. Together they make shell scripts fail fast and show their work.Tue, 06 Dec 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-sox-trim-audio-silencehttps://lukeocodes.dev/til-sox-trim-audio-silencesox detects and removes silence from audio files automatically. Clean up recordings before processing without a GUI editor.Tue, 01 Nov 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-python-virtual-environments-venvhttps://lukeocodes.dev/til-python-virtual-environments-venvpython -m venv gives each project its own virtual environment, so two projects needing different library versions never fight over global packages.Tue, 04 Oct 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-nodemon-watch-modehttps://lukeocodes.dev/til-nodemon-watch-modenodemon watches your source files and restarts the process on any change. No manual Ctrl-C up-arrow-enter cycle during development.Tue, 06 Sep 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-argparse-python-clihttps://lukeocodes.dev/til-argparse-python-cliargparse generates --help text, validates types, and parses positional and optional arguments. Built into Python, no third-party deps.Tue, 02 Aug 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-tmux-persistent-sessionshttps://lukeocodes.dev/til-tmux-persistent-sessionstmux keeps your terminal session alive when you disconnect. Reattach from anywhere — long-running processes survive SSH drops.Tue, 05 Jul 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-shasum-file-integrityhttps://lukeocodes.dev/til-shasum-file-integrityshasum computes a SHA hash of any file. Compare hashes before and after transfer to catch corruption — no extra tools needed.Tue, 07 Jun 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-pre-commit-hooks-python-nodehttps://lukeocodes.dev/til-pre-commit-hooks-python-nodepre-commit runs linters and formatters on every git commit. A .pre-commit-config.yaml enforces the same checks across every contributor.Tue, 03 May 2022 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/til-pytest-cli-testinghttps://lukeocodes.dev/til-pytest-cli-testingpytest with subprocess or click's test runner validates CLI output, exit codes, and error messages without manual terminal checks.Tue, 05 Apr 2022 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-semver-cli-versioninghttps://lukeocodes.dev/til-semver-cli-versioningThe semver CLI validates, compares, and increments version strings from the terminal. No more manual math on MAJOR.MINOR.PATCH.Tue, 01 Mar 2022 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/til-asyncio-concurrent-pythonhttps://lukeocodes.dev/til-asyncio-concurrent-pythonasyncio runs multiple network requests concurrently without threads. gather() collects results as they finish, cutting wall-clock time dramatically.Tue, 01 Feb 2022 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-commander-js-cli-nodehttps://lukeocodes.dev/til-commander-js-cli-nodecommander.js parses flags, subcommands, and help text from a declarative config. A working CLI takes about ten lines of setup.Tue, 04 Jan 2022 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/til-streaming-json-ijsonhttps://lukeocodes.dev/til-streaming-json-ijsonijson parses JSON as it streams in, skipping the full parse. Handles multi-gigabyte responses without running out of memory.Tue, 07 Dec 2021 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-ffmpeg-audio-conversionhttps://lukeocodes.dev/til-ffmpeg-audio-conversionffmpeg converts between any audio format with a single command. WAV to MP3, FLAC to OGG, sample rate changes, channel mapping — all in one line.Tue, 02 Nov 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-websockets-python-streaminghttps://lukeocodes.dev/til-websockets-python-streamingPython's websockets library opens a persistent connection in a few lines of async code. No polling, no HTTP overhead, just messages in both directions.Tue, 05 Oct 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-act-github-actions-localhttps://lukeocodes.dev/til-act-github-actions-localact runs your GitHub Actions workflows on your machine using Docker. No push-and-pray, iterate locally first.Tue, 07 Sep 2021 00:00:00 GMTTILEngineeringOpen Sourcehttps://lukeocodes.dev/til-tar-deployment-packageshttps://lukeocodes.dev/til-tar-deployment-packagestar bundles a directory into a single file preserving permissions and structure. One command packages your entire deployable artifact.Tue, 03 Aug 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-git-bisect-find-breaking-commithttps://lukeocodes.dev/til-git-bisect-find-breaking-commitgit bisect does a binary search through your history to find the exact commit that introduced a bug. Mark good and bad, it does the rest.Tue, 06 Jul 2021 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/til-redirect-rules-redirects-filehttps://lukeocodes.dev/til-redirect-rules-redirects-fileA _redirects file maps old paths to new ones with one rule per line. No config parser, no build step, just deploy and it works.Tue, 01 Jun 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-node-profiling-build-performancehttps://lukeocodes.dev/til-node-profiling-build-performancenode --prof generates a V8 tick profile of your script. Process it with --prof-process and see exactly where every millisecond went.Tue, 04 May 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-diff-patch-file-changeshttps://lukeocodes.dev/til-diff-patch-file-changesdiff produces a patch file describing what changed. patch applies it elsewhere. No git required for sharing small fixes between environments.Tue, 06 Apr 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-json-schema-validation-ajvhttps://lukeocodes.dev/til-json-schema-validation-ajvAjv validates JSON payloads against a schema in milliseconds. Define your shape once and reject bad data before it reaches your logic.Tue, 02 Mar 2021 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-named-pipes-mkfifohttps://lukeocodes.dev/til-named-pipes-mkfifomkfifo creates a named pipe that acts like a file but connects two processes. One writes, the other reads, zero network overhead.Tue, 02 Feb 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-strip-ansi-terminal-outputhttps://lukeocodes.dev/til-strip-ansi-terminal-outputColoured terminal output looks great until you pipe it to a file. The sed command strips ANSI codes cleanly, leaving plain text.Tue, 05 Jan 2021 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-testing-httpbin-locallyhttps://lukeocodes.dev/til-testing-httpbin-locallyhttpbin echoes your request back as JSON, so testing a client locally shows exactly what it put on the wire. No real endpoint needed to debug.Tue, 01 Dec 2020 00:00:00 GMTTILAPIsEngineeringhttps://lukeocodes.dev/til-tee-split-outputhttps://lukeocodes.dev/til-tee-split-outputThe tee command writes command output to a file while still printing it on screen. Perfect for logging a build without losing live visibility.Tue, 03 Nov 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-qr-codes-terminal-qrencodehttps://lukeocodes.dev/til-qr-codes-terminal-qrencodeqrencode turns any text into a QR code in one command. Pipe it to a PNG or straight to the terminal for quick mobile tests.Tue, 06 Oct 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-node-cron-schedulinghttps://lukeocodes.dev/til-node-cron-schedulingA cron expression and a callback is all node-cron needs to run tasks on a schedule. No system cron, no external dependencies.Tue, 01 Sep 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-git-hooks-core-hookspathhttps://lukeocodes.dev/til-git-hooks-core-hookspathGit's core.hooksPath lets each repo use its own hooks directory. No more symlinks or global hook collisions across projects.Tue, 04 Aug 2020 00:00:00 GMTTILGitEngineeringhttps://lukeocodes.dev/til-rate-limiting-bottleneckhttps://lukeocodes.dev/til-rate-limiting-bottleneckBottleneck queues API calls to stay under rate limits without losing data. Set max concurrent and min delay, then forget it.Tue, 07 Jul 2020 00:00:00 GMTTILAPIsEngineeringhttps://lukeocodes.dev/til-node-http-serverhttps://lukeocodes.dev/til-node-http-serverNode's built-in http module creates a working server in five lines. No Express, no dependencies, just a callback and a port.Tue, 02 Jun 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-dotenv-nodejshttps://lukeocodes.dev/til-dotenv-nodejsA .env file keeps API keys out of your NodeJS code, and the dotenv package loads them into process.env with zero configuration.Tue, 05 May 2020 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-curl-webhook-testinghttps://lukeocodes.dev/til-curl-webhook-testingA curl POST to your webhook endpoint with a JSON body simulates any provider. No dashboard, no test suite, just response codes and latency.Tue, 07 Apr 2020 00:00:00 GMTTILAPIsEngineeringhttps://lukeocodes.dev/til-node-inspector-debugginghttps://lukeocodes.dev/til-node-inspector-debuggingnode --inspect opens Chrome DevTools for your server process. Breakpoints, heap snapshots, profiling — no console.log needed.Tue, 03 Mar 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-vue-router-lazy-loadinghttps://lukeocodes.dev/til-vue-router-lazy-loadingA dynamic import in your router config splits your Vue bundle per route. Pages load on demand instead of all at once.Tue, 04 Feb 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-async-await-nodejshttps://lukeocodes.dev/til-async-await-nodejsAsync await turns nested .then chains into flat readable code. One async function wrapper is all it takes to clean up any Node.js callback mess.Tue, 07 Jan 2020 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-recording-terminal-sessions-scripthttps://lukeocodes.dev/til-recording-terminal-sessions-scriptThe script command records everything in your terminal to a file. scriptreplay plays it back. Built into macOS and Linux, zero install.Tue, 03 Dec 2019 00:00:00 GMTTILEngineeringhttps://lukeocodes.dev/til-parsing-json-jq-terminalhttps://lukeocodes.dev/til-parsing-json-jq-terminalPipe any JSON response into jq and get coloured, filtered, transformed output right in the terminal. No temp file, no throwaway parser.Tue, 05 Nov 2019 00:00:00 GMTTILAPIsEngineeringhttps://lukeocodes.dev/til-forwarding-localhost-ngrokhttps://lukeocodes.dev/til-forwarding-localhost-ngrokOne ngrok command gives any local server a public HTTPS URL. Webhook testing goes from impossible to trivial in under five seconds.Tue, 01 Oct 2019 00:00:00 GMTTILEngineeringAPIshttps://lukeocodes.dev/til-testing-websockets-wscathttps://lukeocodes.dev/til-testing-websockets-wscatA single wscat command opens an interactive WebSocket session to any endpoint. No browser, no boilerplate, just connect and send messages.Tue, 03 Sep 2019 00:00:00 GMTTILEngineering