flake: add zedless

hosts/hermit/programs.nix

@@ -1,9 +1,32 @@
-{pkgs, ...}: {
+{
+  inputs,
+  pkgs,
+  ...
+}:let
+
+# a newer nil version, for pipes support.
+newer-nil = pkgs.nil.overrideAttrs (_: {
+  version = "unstable-02-06-2025";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "oxalica";
+    repo = "nil";
+    rev = "577d160da311cc7f5042038456a0713e9863d09e";
+    hash = "sha256-ggXU3RHv6NgWw+vc+HO4/9n0GPufhTIUjVuLci8Za8c=";
+  };
+  cargoDeps = pkgs.rustPlatform.fetchCargoVendor {
+    inherit (newer-nil) src;
+    hash = "sha256-uZsLlFU9GKLvFllF7Kf5Q7HfN26KQojf4rvOb9p7Rjs=";
+  };
+});
+
+in {
   environment.systemPackages = builtins.attrValues {
     inherit
       (pkgs)
       abook
       aerc
+      alejandra
       aichat
       alsa-utils
       anki
@@ -79,5 +102,7 @@
       xournalpp
       zathura
       ;
+    inherit (inputs.zedless.packages.${pkgs.stdenv.system}) zed-editor;
+    inherit newer-nil;
   };
 }