Totally new ai.nix, integrating MIstral with ZED

henrovnix_ok/configuration/core/nix-settings.nix

@@ -0,0 +1,38 @@
+{ pkgs, user, ... } :
+{
+  nix.settings = {
+    # enable flakes
+    experimental-features = ["nix-command" "flakes"];
+
+    # add a cache that speed up new applications by downloading binaries
+    # from the trusted cache instead of compiling from sourcer
+    substituters = [
+      "https://nix-community.cachix.org"
+    ];
+    # trust the cache public key
+    trusted-public-keys = [
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    ];
+  };
+
+  # allow proprietary software on this machine. I'm not a purist.
+  nixpkgs.config.allowUnfree = true;
+  # unityhub depends on this... for now
+  nixpkgs.config.permittedInsecurePackages = [ "libxml2-2.13.8" ];
+
+  # this declares how often old configurations are cleared up.
+  # i cleanup anything older than a week, every week.
+  nix.gc = {
+    automatic = true;
+    options = "--delete-older-than 7d";
+    dates = "weekly";
+  };
+
+  programs = {
+    # command line utility that makes applying changes easy and pretty
+    nh = {
+      enable = true;
+      flake = "/home/${user.username}/system";
+    };
+  };
+}