feat(gs/system): Init yeren

My new work laptop, a dell XPS 13.

Change-Id: Ieab06622c9b280182025edfa63adf649e5fc70d8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2205
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: lukegb <lukegb@tvl.fyi>

users/glittershark/system/home/machines/yeren.nix

@@ -0,0 +1,17 @@
+{ pkgs, lib, config, ... }:
+
+{
+  imports = [
+    ../platforms/linux.nix
+    ../modules/common.nix
+  ];
+
+  # for when hacking
+  programs.home-manager.enable = true;
+  home.stateVersion = "20.03";
+
+  system.machine = {
+    wirelessInterface = "wlp0s20f3";
+    i3FontSize = 9;
+  };
+}