Install fixed Steam launcher in home profile

This can run Cities:Skylines with "Steam Linux Runtime 1.0 (scout)" as a
forced Steam compatibility tool.

Installing it here is easier than launching Steam from the command line every
time.

1 files changed, 29 insertions, 0 deletions

diff --git a/tw/packages/games.scm b/tw/packages/games.scm
index 701f983a..b40590ba 100644
--- a/tw/packages/games.scm
+++ b/tw/packages/games.scm
@@ -40,10 +40,39 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix modules)
   #:use-module (guix packages)
+  #:use-module ((nongnu packages nvidia)
+                #:select (nvda))
+  #:use-module ((nongnu packages steam-client)
+                #:select (steam-container))
   #:use-module (nonguix build-system binary)
+  #:use-module ((nonguix multiarch-container)
+                #:select (nonguix-container nonguix-container->package ngc-union32 ngc-union64))
   #:use-module ((nonguix licenses) #:prefix nonguix-license:))
 
 
+;;; Steam
+
+;; TODO: revert to upstream Nonguix' `steam-nvidia-container' once
+;; https://gitlab.com/nonguix/nonguix/-/merge_requests/359 is merged or libx11
+;; is ungrafted in Guix.
+(define replace-mesa*
+  (let* ((mesa-fixed (@@ (nongnu packages steam-client) mesa-fixed))
+         (mesa/nvda (package (inherit mesa) (replacement nvda)))
+         (mesa-fixed/nvda (package (inherit mesa-fixed) (replacement nvda))))
+    (package-input-rewriting
+     `((,mesa . ,mesa/nvda)
+       (,mesa-fixed . ,mesa-fixed/nvda)))))
+
+(define-public steam-nvidia
+  (nonguix-container->package
+   (nonguix-container
+    (inherit steam-container)
+    ;; All .desktop files refer to an executable called "steam".
+    (name "steam")
+    (union64 (replace-mesa* (ngc-union64 steam-container)))
+    (union32 (replace-mesa* (ngc-union32 steam-container))))))
+
+
 ;; Simutrans
 
 (define-public simutrans