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Streaming product
Dachi, broken down.
Live co-working & chess overlays for Twitch and OBS — graphics a streamer drops onto a broadcast as a single browser source, no install. This page takes apart the idea and the design constraints an overlay has to live within. Production captures and the exact framework come from the build (dachi.gg).
In my words
What it is
Dachi is a small streaming product I build, live at dachi.gg. It ships two overlay modes — a co-working overlay for focus/body-doubling streams, and a chess overlay for chess content — both of which a creator adds to OBS (or any Twitch-facing setup) as a browser source: one URL, pasted in, no download.
That delivery model is the whole design brief. An overlay isn't an app you look at directly — it lives on top of someone else's stream, over gameplay or a webcam, for hours. So the design problem isn't “make a nice screen,” it's “make a graphic that stays legible, calm, and on-brand on top of anything, for a long time.”
- Type
- Browser-source overlay
- For
- Twitch / OBS streamers
- Modes
- Co-working · Chess
- Live
- dachi.gg
The chrome
Repeating components, named
The pieces an overlay tool ships — each one a browser source the streamer composites into a scene.
What it took
Built with
A browser-source overlay is a web app by definition — it renders in OBS's embedded browser. Exact framework confirmed from the build.
Related work
The esports thread
Dachi grows out of years of gaming-community work.
The field's terms
How streamers actually talk about this
The vocabulary an overlay has to fit into.