feat(fun/solves-this): add, deploy to public01

This builds the important website for both snix.systems and its
predecessor, tvix.systems.

Change-Id: I4cce5595098c804bd4df0cc2ae3c05344138e7b1
Reviewed-on: https://cl.snix.dev/c/snix/+/30502
Autosubmit: Florian Klink <flokli@flokli.de>
Reviewed-by: Ryan Lahfa <ryan@lahfa.xyz>
Tested-by: besadii

ops/machines/public01/default.nix

@@ -20,6 +20,7 @@ in
     (mod "www/auth.snix.dev.nix")
     (mod "www/git.snix.dev.nix")
     (mod "www/cache.snix.dev.nix")
+    (mod "www/snix.systems.nix")
     (mod "known-hosts.nix")
 
     (depot.third_party.agenix.src + "/modules/age.nix")

ops/modules/www/snix.systems.nix

@@ -0,0 +1,20 @@
+{ depot, ... }:
+
+{
+  imports = [
+    ./base.nix
+  ];
+
+  config = {
+    services.nginx.virtualHosts."snix.systems" = {
+      enableACME = true;
+      forceSSL = true;
+      root = depot.fun.solves-this.snix;
+    };
+    services.nginx.virtualHosts."tvix.systems" = {
+      enableACME = true;
+      forceSSL = true;
+      root = depot.fun.solves-this.tvix;
+    };
+  };
+}