obsidian from unstable

modules/nur-and-unstable.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 {
   # How NUR (or unstable) can be imported without `niv`.
   #nixpkgs.config.packageOverrides = pkgs: {
@@ -15,6 +15,20 @@
     # Import unstable with niv.
     unstable = import (import ../nix/sources.nix).unstable {
       inherit pkgs;
+
+      # "unstable" `nixpkgs.config` has to be configured here where we import it.
+      # https://github.com/NixOS/nixpkgs/issues/69347#issuecomment-534573461
+      config = {
+
+        # Required for unstable.obsidian (see obsidan.nix)
+        allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+          "obsidian"
+        ];
+        permittedInsecurePackages = [
+          "electron-25.9.0"
+        ];
+
+      };
     };
   };
 

modules/obsidian.nix

@@ -1,17 +1,23 @@
 { config, pkgs, lib, ... }:
 {
-  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
-    "obsidian"
-  ];
+  # TODO.
+  # As of 01.01.2024, the Electron version of Obsidian does not find some GL libraries.
+  # Temporary workaround (https://github.com/NixOS/nixpkgs/issues/268490#issuecomment-1817991394):
+  #   export LD_LIBRARY_PATH=$(nix --extra-experimental-features nix-command --extra-experimental-features flakes build --print-out-paths --no-link nixpkgs#libGL)/lib
+  #   obsidian
 
-  # TODO: Disallow insecure Electron version.
-  nixpkgs.config.permittedInsecurePackages = [
-    "electron-25.9.0"
-  ];
+  # This `config` is only for "stable" `nixpkgs`, not for "unstable".
+  # See nur-and-unstable.nix
+#  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+#    "obsidian"
+#  ];
 
+  # TODO go back to stable nixpkgs.
+  # As of 01.01.2024, obsidian did not start on Wayland and it is using an insecure Electron version.
+  # Thus, we are currently running it from unstable.
   users.users.yoda = {
     packages = with pkgs; [
-      obsidian # Markdown notes
+      unstable.obsidian # Markdown notes
     ];
   };
 }