massive rewrite using flake-parts

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

hosts/modules/minpkgs.nix

@@ -0,0 +1,16 @@
+{ config, pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    git
+    htop
+    vim
+    wireguard-tools
+    vault
+    tree-sitter
+    rnix-lsp
+    nmap
+    gcc
+    fly
+    postgresql #for the client cli
+  ];
+}