Open-source experiments and tools, mostly around AI developer tooling, agent orchestration, and a few hardware/integration side quests.
Everything below is public.
The Repo link takes you to the source; where a hosted version or package exists, the Web link points to it.
🌐 Browse it all at stuff.flopbut.pl - the same projects with a card per project and detail pages.
| Project | What it is | Links |
|---|---|---|
| FlopCoin | A physical silver coin (single issuance of ~100 unique pieces) that redeems for one hour of Flop's time - an art object and collectible whose only way in is from an existing holder. | Repo · Web |
| korovany | 3D caravan-raiding action game in the browser - a Babylon.js + React SPA with a full-window canvas, world map fast-travel, and a unit-tested win/lose loop. | Repo · Web |
| flopbut.pl | Flop Butylkin's personal site and the hub the rest of Flop's Stuff hangs off - a trilingual (EN/RU/PL) Astro site on Cloudflare Workers, static by default with a dormant serverless contact endpoint. | Repo · Web |
| Project | What it is | Links |
|---|---|---|
| cotel | Claude Code OpenTelemetry - a single-container OTLP ingest endpoint plus an interactive dashboard for Claude Code usage (sessions, models, tools, cost, timings). | Repo |
| flugins | Claude Code plugin marketplace - a curated plugins repository you can point your Claude Code install at. | Repo |
| soulgrep | grep the human signal from the noise - a tool for surfacing what actually matters in large bodies of text. | Repo · Web |
| coqu | Code Query - query and explore codebases. | Repo · Web |
| chaiba | Chess AI Battle Arena - pit chess engines/AIs against each other and watch them play. | Repo · Web |
| aimaf | AI Mafia - a client-only React SPA that runs a Mafia-style social deduction game between multiple LLM "players" via OpenRouter. | Repo · Web |
| otp | Offline, private TOTP (2FA) code generator - computes codes locally in the browser via the Web Crypto API, nothing sent or stored. | Repo · Web |
| ram | Random Agents Memories - a shared, always-on "second brain" for AI agents: a markdown-vault-mcp server over a git-backed vault, exposed via Cloudflare Tunnel with bearer + OAuth (Authelia) multi-auth. | Repo |
| Project | What it is | Links |
|---|---|---|
| ksef-client-ts | TypeScript client for the Polish National e-Invoice System (KSeF) API. | Repo · npm |
| ksef-docs | English translations of the KSeF documentation. | Repo |
| Project | What it is | Links |
|---|---|---|
| neonka | IBM Wheelwriter electric typewriter hacking project (embedded C++). | Repo |
| triki | Reverse-engineering the Żabka Triki BLE token (nRF52810 + LSM6DSL) and reusing it as a motion controller - hardware notes, BLE protocol docs, Python tooling, and a Web Bluetooth client with a live 3D orientation demo. | Repo · npm · Web |
| huemcp | MCP server for controlling Philips Hue smart lights - mDNS bridge discovery, API-key setup, and control of lights, rooms, zones and grouped lights. | Repo |
| lg | Liquid Glass - an iOS app implementing a realistic magnifying-glass lens effect with Metal shaders and CoreImage (displacement maps, chromatic aberration). | Repo |
Projects we maintain forks of or contribute to. Each Web link points to the upstream project home.
| Project | What it is | Links |
|---|---|---|
| ccui | CloudCLI - a free, open-source web UI for managing Claude Code, Cursor CLI or Codex sessions remotely from mobile or web. | Repo · Web |
| paperclip | Open-source orchestration for zero-human companies. | Repo · Web |
| mcp-md | Headless semantic MCP server for Obsidian, Logseq, Dendron and any markdown vault - AST-based editing, hybrid vector + TF-IDF search, zero-setup local embeddings. | Repo · Web |
| uemcp | MCP server that lets AI assistants control Unreal Engine via a native C++ automation bridge. | Repo |
| wetty | Terminal in the browser over HTTP/HTTPS (an Ajaxterm/Anyterm alternative). | Repo · Web |