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docs(tools): note headless fake-daemon runs with SDL_VIDEODRIVER=offscreen

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Scripted runs nobody needs to watch can run the GUI without a window:
OpenGL still loads, and connecting and shutting down behave as usual.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
DanS
2026-10-01 22:49:58 -05:00
co-authored by Claude Opus 5.5
parent a091bbc52f
commit b1d5806f9e
1 changed files with 2 additions and 1 deletions
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tools/fake_dragonxd/README.md
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@@ -84,7 +84,8 @@ something already listens on 21769, because the GUI would adopt that process as
It also refuses a Lite-configured `--build-dir`: Lite has no embedded daemon, and any
`bin/ObsidianDragon` in such a tree is stale.
To "close the window" from a script, send SIGTERM to the GUI (`kill -TERM <gui pid>`); SDL turns it
into a normal quit.
into a normal quit. For scripted runs nobody needs to watch, add `SDL_VIDEODRIVER=offscreen`: the GUI
runs with no window at all (OpenGL still loads, and connecting and shutting down work as usual).
To run the stub alone: `FAKE_... build/linux/fake_dragonxd/dragonxd -datadir=/some/dir [-printtoconsole]`
with a `DRAGONX.conf` (`rpcuser`/`rpcpassword`/`rpcport`) in that dir.