🛠️ Open Source Builder

I do open source while doing dad stuff. Building tools that make mostly my life easier.

Independent tools and frameworks I've built.

• 🪟 openmux - A simpler multiplexer, built with OpenTUI. Terminal window management reimagined.
• 📖 folio - Book PDF pagination using @chenglou/pretext for text measurement and Chrome's native page breaking. Replaces Paged.js.
• ⚡ quickbeam-js - OTP patterns in JavaScript, on the BEAM — Supervisors, GenServers, Registries, Pools, Tasks, and Applications built on QuickBEAM primitives

My collection of extensions for the pi coding agent.

• 🩹 pi-tool-repair - Validate-then-repair extension for pi — fixes common LLM tool-call mistakes (null fields, stringified arrays, wrong field names, anchor bleed) before tools execute.
• ⚡ pi-io-provider - IO Intelligence as a custom model provider for pi.
• ⚡ pi-neuralwatt-provider - Neuralwatt as a custom model provider for pi.
• 🌐 pi-tps-web - A web interface to capture pi session customType exports from pi-tps.
• ⛵ pi-parasail-provider - Access DeepSeek, Qwen, GLM, Kimi, Llama, Gemma, Mistral and more through the Parasail API.
• 🔧 pi-opencode-provider - OpenCode as a model provider for pi.
• 🐹 pi-opencode-go-provider - OpenCode (Go) as a model provider for pi.
• 🌙 pi-moonshot-provider - Moonshot as a custom model provider for pi.
• 🎯 pi-crofai-provider - Enable crof.ai as a model provider for pi.
• 🔺 pi-baseten-provider - Baseten as a custom model provider for pi.
• ⚡ pi-fast-resume - ⚡ Instant session picker for pi — reads 16KB per file instead of the full JSONL, first results in 6ms
• 📊 pi-tps - See your LLM generation speed (tokens/second) after every agent turn.
• 🐊 pi-makora-provider - Makora provider extension for pi — access DeepSeek V4, GLM 5.1, Kimi K2.6, Llama 3.3, Qwen 3.6, and more through the Makora inference API
• 🔥 pi-fireworks-provider - Fireworks AI as a model provider for pi.
• 🔗 pi-umans-provider - UMANS provider extension for pi — Access Kimi K2.6, GLM 5.1, Qwen 3.6, and coding-optimized models through the UMANS API.
• 🍪 pi-wafer-provider - wafer.ai as a custom model provider for pi.
• 🔌 pi-tensorix-provider - Tensorix provider extension for pi - Access DeepSeek, GLM, Kimi, Qwen, MiniMax, Llama, and more through the Tensorix API
• 🗜️ pi-vcc — Fork — Smart, Fast & Lossless session compaction for Pi. No LLM calls — produces structured, transcript-preserving summaries using pure extraction and formatting.
• 🪻 pi-lilac-provider - Access Kimi K2.6, GLM 5.1, and Gemma 4 models through Lilac's OpenAI-compatible API on idle GPUs.
• 🐋 pi-deepseek-provider - DeepSeek as a custom model provider for pi.
• 🔁 pi-retry - Simple retry extension for 400 and 413 errors.
• 🐝 pi-messenger-swarm - Multi-agent coordination and messaging system.
• 🐎 pi-startup-tracer - Trace pi extension lifecycle timing to identify startup and resume bottlenecks
• 🔬 pi-autoresearch-harness - Autonomous experiment loop extension for pi with worktrees as a harness version
• 🌊 pi-morph - Pi extension for Morph SDK — Fast Apply, WarpGrep, Public Repo Context, and Compaction
• 🌿 pi-var - Copy-on-Write (CoW) development workspaces. Isolated variations for parallel experiments.
• 🔄 pi-recurse - Recursive subagent delegation, inspired by RLMs. Delegate work in single, parallel, or chain modes.
• 🧠 pi-reason-harness - Recursive self-improving reasoning harness for pi: iterate, verify, improve.
• 🔄 pi-loop - Creates and closes a verification loop on a task.
• 💤 pi-lazy-extensions - Lazy-load pi extensions on demand via a ToolSearch-style proxy tool.
• 👻 pi-invisible-continue - Invisible session continuation for pi; resume without sending any prompt
• 🚫⏩ pi-trust-defer - Skip the startup trust prompt in pi — auto-decline project trust so you're immediately interactive, then /trust + /reload to apply
• 🙈 pi-hide-providers - Hide providers and models from pi's model selector — filter the /model list and Ctrl+P cycling via a configurable blocklist
• 🔄 pi-model-sort - Sort models in pi's /model selector by last usage — most recently used models appear first
• ✨ pi-hypercharm-provider - HyperCharm provider extension for pi — Access DeepSeek, GLM, Kimi, Qwen, MiniMax, Gemma, GPT-OSS, and Llama models through the Charm Hyper API
• 🔘 pi-toggle-skills - Toggle skill visibility in pi's system prompt — flip disable-model-invocation on skills via an interactive TUI
• ⌨️ pi-double-esc - Prevent accidental Escape from aborting the LLM — requires double-press to interrupt while streaming
• 🖼️ pi-warp-kitty-images - Enable Kitty image protocol for Warp terminal in pi's TUI.
• 🖼️ pi-localterm-kitty-images - Enable Kitty image protocol for localterm in pi's TUI.

• 🎯 vscode-aql - Syntax Highlighting for ArangoDB Query Language (AQL). Available on the VSCode Marketplace.
• 📑 tab-flow-chrome - Chrome extension for managing tabs with workflow automation, dark theme support, and smart organization features.
• 🔥 flame-js - FLAME-style remote execution for TypeScript with Bun, Effect.ts internals. Distributed computing made simple.
• 🐮 cowl - Copy-on-Write cloning for macOS. Fast, efficient filesystem operations.
• 🌐 grpc-reverse-proxy - A lightweight reverse proxy for gRPC services.
• 📝 inline-yaml - JavaScript/TypeScript YAML Template Literal Syntax Highlighting. Write YAML inside your JS with full editor support.
• 🧠 nested-modal-transducers-golang-implementation - Nested Modal Transducers in Go, spiced up with XState patterns. State machines meet Go.

• 📡 mastra-observer-mailbox - Ambient/background agent library for Mastra. Give your AI agents a persistent memory layer.
• 🔊 elevenlabs-docs-mcp - MCP server for ElevenLabs documentation. Bridge the gap between your AI coding assistant and voice AI docs.

• 🧮 trie_hard_zig - Novel Trie data structure optimized for small, sparse maps, rewritten in Zig.
• 🔢 sorted_set_nif_zig - Elixir SortedSet backed by a Zig-based NIF for performance.

• ☁️ gitea_on_fly - Self-hosted Gitea on Fly.io. Git hosting that scales.
• 🐳 docker-wscat - Lightweight wscat Docker image based on node:alpine. WebSocket testing in a container.
• 🖥️ dotfiles_i3 - My i3 window manager configuration. Tiling window management done right.

• feat: implement devcontainer stop and down commands — devcontainers/cli
• perf: make loadCodePreviewSettings non-blocking in session_start — mattleong/pi-code-previews
• fix: prevent re-entrant event loop hang in main process (18s freeze) — SuperCmdLabs/SuperCmd
• feat(code-review): entity-level semantic diff in the code review panel — warpdotdev/warp
• fix: respect user's minimumKeyTime for modifier-only hotkeys — kitlangton/Hex
• fix(chunker): propagate render errors instead of silently swallowing — pagedjs/pagedjs

• fix(pi-ext): guard against double session_start firing ("two brains" MCR session_fp flip) — neuralwatt/neuralwatt-tools
• fix: prevent settings window flash when whisper overlay opens — SuperCmdLabs/SuperCmd
• feat(pi): add session_tree handler for MCR state reset on branch navigation — neuralwatt/neuralwatt-tools
• feat(whisper): add dropdown preset keybinding selector for speech-to-text — SuperCmdLabs/SuperCmd
• feat(whisper): native AVAudioEngine capture bypasses renderer getUserMedia — SuperCmdLabs/SuperCmd
• fix(browser-search): restore frecency function removed in #434 — SuperCmdLabs/SuperCmd
• feat(daemon): close pi adapter parity gaps — imagePaths, extraAllowedDirs, error events, sendAgentEvent routing — nexu-io/open-design
• fix(neuralwatt): update Qwen3.6 pricing to match API — anomalyco/models.dev
• fix(i18n): restore structural parity across all 9 locales — SuperCmdLabs/SuperCmd
• fix(diff): remove uncolored gap at right edge of diff background — mattleong/pi-code-previews
• fix: correct searchEntries arg order and add missing bashExecution normalization — sting8k/pi-vcc
• fix(neuralwatt): sync context window and output limits with upstream API — anomalyco/models.dev
• feat: accept discord_username from caller for office check-in — dwarvesf/fortress-api
• fix: prevent flash of unfiltered list when pressing Enter to open app — SuperCmdLabs/SuperCmd
• fix(native): update FluidAudio 0.12.4 → 0.14.4 for Swift 6.3 compatibility — SuperCmdLabs/SuperCmd
• fix(clipboard): use privileged sc-clipboard protocol for image previews in dev mode — SuperCmdLabs/SuperCmd
• fix: correct settings toggle knob alignment for all font sizes — SuperCmdLabs/SuperCmd
• fix: replace prepare with prepack to fix git install — mattleong/pi-code-previews
• fix(lifecycle): run deferred side effects directly after commit — inloopstudio/fosm-rails
• feat(daemon): add model name to pi initial status and RPC abort on cancel — nexu-io/open-design

245 public repositories • Building in the open