01About
I'm a full-stack developer who streams. The thing I keep coming back to is the seam between building shippable software and running a Twitch channel — every overlay and companion app I make is one I'd use myself that night.
Most of my work runs on Cloudflare Workers and Next.js static export — cheap to host, fast everywhere, no server tax to keep something free. The Twitch stack is anonymous IRC for chat and EventSub for everything Twitch removed from IRC. Spotify via the Web API. Config hot-swaps to the live overlay over a Durable Object websocket fanout.
I like code that does what the box says in fewer lines than expected, with no half-finished migrations. I don't like dashboards that won't tell you why something broke.
03Selected work
Stream Toolkit
Open-source pack of OBS browser-source overlays and companion apps for Twitch streamers — lurk peek, !sr Spotify, chat box, event list, BRB player, video shout-out, emote rain, death counter, subathon timer. One Twitch login, zero subscriptions, hot-swap config preview.
ForgetMeNot
Twitch chat bot with persistent local-first memory. Remembers chatters across streams, tunable persona (GLaDOS / HAL / TARS register), opt-in research mode that hands factual questions to a reasoning model. Ships as a tiny tray app — not Electron, not Tauri.
Clipline
Desktop tool for bulk-backing-up Twitch clips. Filters by date, view count, creator. Resumes interrupted downloads, retries failures, skips clips already pulled.
Alert! Alert!
Lightweight desktop notifier that pops a native system alert when configured chat keywords or events fire on a Twitch channel. Useful when alt-tabbed or running a solo stream.
Collab Planner
Scheduling tool for stream crews. Reads each member's Twitch VOD history and auto-detects overlap windows — skips the calendar-tetris for collab streams.
P.A.T.H.O.S.
Interactive 3D resume rendered in the browser. Low-poly PSX aesthetic, in-world UI, every project is a physical object you pick up and inspect.
02Stack
04Contact
Fastest reach: [email protected]. Also on GitHub and live on Twitch a few nights a week — usually breaking the toolset on stream and fixing it before chat notices.
05Surfaces
deutschmark.online — marketing root, photography, P.A.T.H.O.S.
toolset.deutschmark.online — the overlay + companion-app dashboard.
collab.deutschmark.online — stream collab scheduler.
06Writing
- Jun 2026EBU R128 loudness in the browser
- Jun 2026Twitch IRC vs EventSub: when each wins
- Jun 2026Hot-swap overlay config with Durable Objects
- Feb 2026Twitch chat overlay with 7TV + BTTV + FFZ
- Jan 2026Free subathon timer for OBS
- Dec 2025Free alternative to OWN3D lurk overlay
- Nov 2025Free !sr Spotify song-request bot
- Nov 2025How to add a browser source in OBS
▸ More on toolset.deutschmark.online/docs