chore(users): grfn -> aspen

Change-Id: I6c6847fac56f0a9a1a2209792e00a3aec5e672b9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10809
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>

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

@@ -0,0 +1,77 @@
+{ pkgs, lib, config, ... }:
+
+let
+  inherit (builtins) pathExists;
+  laptopKeyboardId = "5";
+in
+
+{
+  imports = [
+    ../platforms/linux.nix
+    ../modules/common.nix
+    ../modules/desktop.nix
+    ../modules/development/agda.nix
+    ../modules/development/readyset.nix
+    ../modules/development/ocaml.nix
+  ] ++ (lib.optional (pathExists ../modules/private.nix) ../modules/private.nix);
+
+  # for when hacking
+  programs.home-manager.enable = true;
+  home.stateVersion = "20.03";
+
+  system.machine = {
+    wirelessInterface = "wlp0s20f3";
+    i3FontSize = 9;
+  };
+
+  home.packages = with pkgs; [
+    zoom-us
+    slack
+    mariadb
+    graphviz
+    gnuplot
+    mypaint
+    xdot
+    tdesktop
+    subsurface
+    discord
+    steam
+  ];
+
+  systemd.user.services.laptop-keyboard = {
+    Unit = {
+      Description = "Swap caps+escape and alt+super, but only on the built-in laptop keyboard";
+      After = [ "graphical-session-pre.target" ];
+      PartOf = [ "graphical-session.target" ];
+    };
+
+    Install = { WantedBy = [ "graphical-session.target" ]; };
+
+    Service = {
+      Type = "oneshot";
+      RemainAfterExit = true;
+      ExecStart = (
+        "${pkgs.xorg.setxkbmap}/bin/setxkbmap "
+        + "-device ${laptopKeyboardId} "
+        + "-option caps:swapescape "
+        + "-option compose:ralt "
+        + "-option altwin:swap_alt_win"
+      );
+    };
+  };
+
+  xsession.windowManager.i3.config.keybindings.F9 = "exec lock";
+
+  xdg.mimeApps.defaultApplications."x-scheme-handler/tg" =
+    "telegramdesktop.desktop";
+
+  programs.zsh.shellAliases = {
+    "graph" = "curl -s localhost:6033/graph | dot -Tpng | feh -";
+  };
+
+  programs.ssh.matchBlocks."grfn-dev" = {
+    host = "grfn-dev";
+    forwardAgent = true;
+    user = "ubuntu";
+  };
+}