Some massive changes to make flakiness better

Renamed the @inputs to @top. This was a misguided attempt to make a
different change, but it's going to stick, now.
Began moving packages to their own folder rather than being intermingled
with overlays
Created a local overlay that just includes my personal packages
Cleaned up some dead code
Moved to just using the raw 'imports' instead of needing to explicitly
call out the `foo = import foo.nix {};` syntax

home/hosts/ivr/default.nix

@@ -1,26 +1,35 @@
-{ pkgs, lib, inputs, ... }:
+{
+  pkgs,
+  lib,
+  top,
+  ...
+}:
 let
-  nix23 = import inputs.nix23_05 {
+  nix23 = import top.nix23_05 {
     inherit (pkgs.stdenv) system;
-    overlays = [ inputs.self.overlays.default ];
+    overlays = [ top.self.overlays.default ];
   };
-  py = nix23.python311.withPackages (p: with p; [
-    django
-    djangorestframework
-    django-rapyd-modernauth
-    environs
-    mysqlclient
-    pyyaml
-    ruamel-yaml
-    tox
-  ]);
+  py = nix23.python311.withPackages (
+    p: with p; [
+      django
+      djangorestframework
+      django-rapyd-modernauth
+      environs
+      mysqlclient
+      pyyaml
+      ruamel-yaml
+      tox
+    ]
+  );
   x = pkgs.xonsh.override {
-    extraPackages = (ps: [
-      pkgs.nur.repos.xonsh-xontribs.xonsh-direnv
-      pkgs.nur.repos.xonsh-xontribs.xontrib-vox
-      ps.xonsh-apipenv
-      pkgs.pipenv-ivr
-    ]);
+    extraPackages = (
+      ps: [
+        pkgs.nur.repos.xonsh-xontribs.xonsh-direnv
+        pkgs.nur.repos.xonsh-xontribs.xontrib-vox
+        ps.xonsh-apipenv
+        pkgs.pipenv-ivr
+      ]
+    );
   };
 in
 {
@@ -33,9 +42,7 @@ in
 
   nixpkgs.config = {
     allowUnfree = true;
-    permittedInsecurePackages = [
-      "jitsi-meet-1.0.8043"
-    ];
+    permittedInsecurePackages = [ "jitsi-meet-1.0.8043" ];
   };
 
   home = {
@@ -51,14 +58,16 @@ in
       robo3t
       x
     ];
-    file.".pip/pip.conf".text = (lib.strings.concatStringsSep "\n" [
-      "[global]"
-      "retries = 1"
-      "index-url = https://pypi.python.org/simple"
-      "extra-index-url ="
-      "    https://pypi.ivrtechnology.com/simple/"
-      "    https://pypidev.ivrtechnology.com/simple/"
-    ]);
+    file.".pip/pip.conf".text = (
+      lib.strings.concatStringsSep "\n" [
+        "[global]"
+        "retries = 1"
+        "index-url = https://pypi.python.org/simple"
+        "extra-index-url ="
+        "    https://pypi.ivrtechnology.com/simple/"
+        "    https://pypidev.ivrtechnology.com/simple/"
+      ]
+    );
     username = "gregory.hellings";
     homeDirectory = lib.mkForce "/home/gregory.hellings";
   };