diff --git a/modules/home/fish.nix b/modules/home/fish.nix
index 3748fd0..c616799 100644
--- a/modules/home/fish.nix
+++ b/modules/home/fish.nix
@@ -12,7 +12,7 @@
       set -gx PKG_CONFIG_PATH ${pkgs.openssl.dev}/lib/pkgconfig;
       alias vi="nvim"
       alias rb="sudo nixos-rebuild switch --flake ~/nixos-config#"
-      alias dry-rb="sudo nixos-rebuild switch --dry-run --flake ~/nixos-config#"
+      alias dry-rb="sudo nixos-rebuild dry-build --flake ~/nixos-config#"
     '';
     plugins = [
       # Enable a plugin (here grc for colorized command output) from nixpkgs
diff --git a/pkgs/programming.nix b/pkgs/programming.nix
index 213bc87..2569128 100644
--- a/pkgs/programming.nix
+++ b/pkgs/programming.nix
@@ -41,6 +41,7 @@ with pkgs; [
   erlang
   hex
   rebar3
+  avalonia-ilspy
   haskellPackages.stack
   haskellPackages.hpack
   haskellPackages.cabal-install