envision: Add missing dependency (#395611)

pkgs/by-name/en/envision-unwrapped/package.nix

@@ -106,6 +106,9 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://gitlab.com/gabmus/envision";
     license = lib.licenses.agpl3Only;
     mainProgram = "envision";
+    # More maintainers needed!
+    # envision (wrapped) requires frequent updates to the dependency list;
+    # the more people that can help with this, the better.
     maintainers = with lib.maintainers; [
       pandapip1
       Scrumplex

pkgs/by-name/en/envision/package.nix

@@ -52,6 +52,7 @@ buildFHSEnv {
           xorg.xorgproto
           SDL2
           wayland
+          mesa-gl-headers
           # Additional dependencies required for Monado WMR support
           bc
           fmt
@@ -60,6 +61,7 @@ buildFHSEnv {
           gtest
           jq
           libepoxy
+          lz4
           lz4.dev
           tbb
           libxkbcommon