enable garbage collection, openssh, autologin, etc.

also:
- mangohud
- flatpak
- wake on lan
- increase mic gain

hosts/takamaki/modules/openssh.nix

@@ -0,0 +1,23 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  users.users."grey".openssh.authorizedKeys.keys = [ "ssh-rsa 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 grey@kitagawa" ];
+
+  services.openssh = {
+    enable = true;
+    enableRecommendedAlgorithms = false;
+    generateHostKeys = false;
+    settings = {
+      AllowUsers = [ "grey" ];
+      KbdInteractiveAuthentication = false;
+      PasswordAuthentication = false;
+      PermitRootLogin = "no";
+      MaxAuthTries = 3;
+      MaxSessions = 5;
+      MaxStartups = "2:50:5";
+    };
+    startWhenNeeded = true;
+  };
+}