runsh

hosts/nixdesk/default.nix

@@ -10,6 +10,7 @@
     [
       ./hardware.nix
       ./profiles/hibernate-boot.nix
+      ./profiles/devshells.nix
       ./profiles/samba-mount.nix
       ./profiles/wireguard.nix
       ./profiles/restic-server.nix

hosts/nixdesk/home.nix

@@ -122,16 +122,6 @@
     android-studio
     jetbrains.rider
     jetbrains.clion
-    (pkgs.buildFHSEnv {
-      name = "silk-fhs";
-      runScript = "bash";
-      targetPkgs = pkgs:
-        with pkgs; [
-          glfw
-          assimp
-          wgpu-native
-        ];
-    })
     # jetbrains.idea-ultimate
 
     # communication

hosts/nixdesk/profiles/devshells.nix

@@ -0,0 +1,44 @@
+{
+  pkgs,
+  lib,
+  ...
+}: let
+  shells = {
+    silk-fhs = "with pkgs; [glfw libGL assimp wgpu-native]";
+  };
+in {
+  environment.systemPackages = [
+    (pkgs.writeShellApplication {
+      name = "runsh";
+
+      runtimeInputs = [pkgs.nix];
+
+      text = ''
+        ${lib.concatMapAttrsStringSep "\n" (name: value: ''
+            runshell-${name}() {
+              # shellcheck disable=SC2016
+              nix shell --impure --expr '(import <nixpkgs> {}).buildFHSEnv {
+                name = "devshell";
+                runScript = "$SHELL";
+                targetPkgs = pkgs: ${value};
+              }' --command devshell
+            }
+          '')
+          shells}
+        if [ -z "''${1:-}" ]; then
+          echo "available shells:"
+          ${lib.concatMapAttrsStringSep "\n" (name: _: "echo ${name}") shells}
+          exit
+        fi
+
+        case $1 in
+        ${lib.concatMapAttrsStringSep "\n" (name: _: ''
+            "${name}") runshell-${name} ;;
+          '')
+          shells}
+          *) echo no such shell ;;
+        esac
+      '';
+    })
+  ];
+}