WIP: fix steam generation switch

flake.lock

@@ -422,6 +422,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-fix-steam-generation-switching": {
+      "locked": {
+        "lastModified": 1666673293,
+        "narHash": "sha256-VpXToWKG743S+dxes6PZ5GbKGV8qTZ+Npmyg1vqGOX4=",
+        "owner": "zhaofengli",
+        "repo": "nixpkgs",
+        "rev": "98773c9c5ef62c578ce22bac5d245401430e55db",
+        "type": "github"
+      },
+      "original": {
+        "owner": "zhaofengli",
+        "ref": "bwrap-fhs-preserve-etc-symlink",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-regression": {
       "locked": {
         "lastModified": 1643052045,
@@ -590,6 +606,7 @@
         "nil-lsp": "nil-lsp",
         "nix-index-database": "nix-index-database",
         "nixpkgs": "nixpkgs_2",
+        "nixpkgs-fix-steam-generation-switching": "nixpkgs-fix-steam-generation-switching",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "nur": "nur",
         "plymouth-themes": "plymouth-themes",

flake.nix

@@ -38,6 +38,8 @@
     sea-orm-cli.url = "github:lucperkins/nixpkgs/lperkins/sea-orm-cli";
     webcord.url = "github:huantianad/nixpkgs/webcord";
 
+    nixpkgs-fix-steam-generation-switching.url = "github:zhaofengli/nixpkgs/bwrap-fhs-preserve-etc-symlink";
+
     nil-lsp.url = "github:oxalica/nil";
     nil-lsp.inputs.nixpkgs.follows = "nixpkgs-unstable";
 

overlays/default.nix

@@ -18,6 +18,10 @@
 
   unstable = (final: prev: {
     unstable = inputs.nixpkgs-unstable.legacyPackages.${prev.system};
+    nixpkgs-fix-steam-generation-switching = import inputs.nixpkgs-fix-steam-generation-switching {
+      config = { allowUnfree = true; };
+      inherit system;
+    };
   });
 
   sixel-patches = (import ./sixel-patches.nix (inputs));
@@ -60,7 +64,7 @@
       patches = old.patches
         ++ [ ../patches/sway/fix-hide_cursor-clearing-focus.patch ];
     });
-    steam = prev.steam.override {
+    steam = final.nixpkgs-fix-steam-generation-switching.steam.override {
       extraPkgs = pkgs: with pkgs; [ capitaine-cursors bibata-cursors ];
     };
   });