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fix(nix): fix ALSA mismatch, add GStreamer plugins, and repair UI environment#787

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cjpais merged 1 commit intocjpais:mainfrom
kakapt:fix-alsa-mismatch
Feb 11, 2026
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fix(nix): fix ALSA mismatch, add GStreamer plugins, and repair UI environment#787
cjpais merged 1 commit intocjpais:mainfrom
kakapt:fix-alsa-mismatch

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@kakapt kakapt commented Feb 11, 2026

Before Submitting This PR

Please confirm you have done the following:

Human Written Description

I've encountered this issue:

ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/z8pz8hz2psggqsws4n7mzbbdghpcxm71-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/szmfcymkkxkfb6yrg2mg9h4g9lsh80b2-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/z8pz8hz2psggqsws4n7mzbbdghpcxm71-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/szmfcymkkxkfb6yrg2mg9h4g9lsh80b2-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/z8pz8hz2psggqsws4n7mzbbdghpcxm71-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/szmfcymkkxkfb6yrg2mg9h4g9lsh80b2-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/z8pz8hz2psggqsws4n7mzbbdghpcxm71-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside
ALSA lib pcm.c:2713:(snd_pcm_open_conf) Either /nix/store/szmfcymkkxkfb6yrg2mg9h4g9lsh80b2-pipewire-1.4.9/lib/alsa-lib/libasound_module_pcm_pipewire.so cannot be opened or _snd_pcm_pipewire_open was not defined inside

AI Assistance

  • No AI was used in this PR
  • AI was used (please describe below)

If AI was used:

  • Tools used: Gemini 3.0
  • How extensively:
    • Use it to summarize the commit
    • Use it to find out why GTK is not function correctly in the devshell

@thinhvu2703
fix(nix): fix ALSA mismatch, add GStreamer plugins, and repair UI env…
06345b9 
…ironment

  - Update `flake.lock` to synchronize `alsa-lib` and `glibc` versions, resolving a runtime `dlopen` crash when loading the PipeWire plugin.
  - Add `gstreamer`, `gst-plugins-base`, `good`, `bad`, and `ugly` to both `buildInputs` (package) and `devShell` to support WebKitGTK audio/video playback (resolving missing `appsink`/`autoaudiosink`).
  - Set `GST_PLUGIN_SYSTEM_PATH_1_0` in both environments so GStreamer can locate the plugins at runtime.
  - Manually set `XDG_DATA_DIRS` in `devShell` to include `gsettings-desktop-schemas` and `gtk3` schemas, fixing UI scaling, theming, and missing asset issues during development.
@cjpais cjpais merged commit 336ccff into cjpais:main Feb 11, 2026
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@y0usaf y0usaf mentioned this pull request Feb 12, 2026
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@kakapt kakapt mentioned this pull request Mar 13, 2026
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@kakapt @cjpais @thinhvu2703