nixos-configs/devices/binto/modules/gpu-replay.nix

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{
config,
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lib,
pkgs,
self,
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...
}: let
inherit (lib) concatStringsSep removePrefix;
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inherit (config.vars) mainUser mainMonitor;
gsr = self.packages.${pkgs.system}.gpu-screen-recorder;
hyprPkgs = config.home-manager.users.${mainUser}.wayland.windowManager.hyprland.finalPackage;
in {
security.wrappers = {
gpu-screen-recorder = {
owner = "root";
group = "video";
capabilities = "cap_sys_nice+ep";
source = "${gsr}/bin/gpu-screen-recorder";
};
gsr-kms-server = {
owner = "root";
group = "video";
capabilities = "cap_sys_admin+ep";
source = "${gsr}/bin/gsr-kms-server";
};
};
home-manager.users.${mainUser} = {
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home.packages = [
gsr
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(pkgs.writeShellApplication {
name = "gpu-save-replay";
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runtimeInputs = [pkgs.procps];
text = ''
pkill --signal SIGUSR1 -f gpu-screen-recorder
'';
})
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(pkgs.writeShellApplication {
name = "gsr-start";
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runtimeInputs = [pkgs.pulseaudio hyprPkgs pkgs.xorg.xrandr];
text = ''
main="${removePrefix "desc:" mainMonitor}"
WINDOW=$(hyprctl -j monitors | jq '.[] |= (.description |= gsub(","; ""))' | jq -r ".[] | select(.description | test(\"$main\")) | .name")
# Fix fullscreen game resolution
xrandr --output "$WINDOW" --primary
gpu-screen-recorder ${concatStringsSep " " [
''-v no''
''-r 1200''
''-mf yes''
''-o /home/matt/Videos/Replay''
# Audio settings
''-ac aac''
''-a "$(pactl get-default-sink).monitor"''
''-a "$(pactl get-default-source)"''
# Video settings
''-w "$WINDOW"''
''-f 60''
''-c mkv''
''-k hevc''
''-q very_high''
]}
'';
})
];
wayland.windowManager.hyprland.settings = {
bind = [",F8, exec, ags -r 'GSR.saveReplay()'"];
};
};
}