update

flake.lock

@@ -89,11 +89,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1772867152,
-        "narHash": "sha256-RIFgZ4O6Eg+5ysZ8Tqb3YvcqiRaNy440GEY22ltjRrs=",
+        "lastModified": 1773025010,
+        "narHash": "sha256-khlHllTsovXgT2GZ0WxT4+RvuMjNeR5OW0UYeEHPYQo=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "eaafb89b56e948661d618eefd4757d9ea8d77514",
+        "rev": "7b9f7f88ab3b339f8142dc246445abb3c370d3d3",
         "type": "github"
       },
       "original": {
@@ -197,11 +197,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1772633058,
-        "narHash": "sha256-SO7JapRy2HPhgmqiLbfnW1kMx5rakPMKZ9z3wtRLQjI=",
+        "lastModified": 1772985280,
+        "narHash": "sha256-FdrNykOoY9VStevU4zjSUdvsL9SzJTcXt4omdEDZDLk=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "080657a04188aca25f8a6c70a0fb2ea7e37f1865",
+        "rev": "8f736f007139d7f70752657dff6a401a585d6cbc",
         "type": "github"
       },
       "original": {
@@ -300,11 +300,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1771969195,
-        "narHash": "sha256-qwcDBtrRvJbrrnv1lf/pREQi8t2hWZxVAyeMo7/E9sw=",
+        "lastModified": 1772972630,
+        "narHash": "sha256-mUJxsNOrBMNOUJzN0pfdVJ1r2pxeqm9gI/yIKXzVVbk=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "41c6b421bdc301b2624486e11905c9af7b8ec68e",
+        "rev": "3966ce987e1a9a164205ac8259a5fe8a64528f72",
         "type": "github"
       },
       "original": {
@@ -316,11 +316,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1772822230,
-        "narHash": "sha256-yf3iYLGbGVlIthlQIk5/4/EQDZNNEmuqKZkQssMljuw=",
+        "lastModified": 1773068389,
+        "narHash": "sha256-vMrm7Pk2hjBRPnCSjhq1pH0bg350Z+pXhqZ9ICiqqCs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "71caefce12ba78d84fe618cf61644dce01cf3a96",
+        "rev": "44bae273f9f82d480273bab26f5c50de3724f52f",
         "type": "github"
       },
       "original": {
@@ -454,11 +454,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1772799438,
-        "narHash": "sha256-81/Ow6L5azplWp9p8gtl/Q1m5s2gCX4iuKNF5ujwxBA=",
+        "lastModified": 1773021923,
+        "narHash": "sha256-ro+i3wNoD2p5FloGGlkCzdmzgBDeq2LJwaIpaI9Dk7Q=",
         "owner": "nix-community",
         "repo": "srvos",
-        "rev": "e6ec80588a07aea2cdb67c2865759e02d85b94b2",
+        "rev": "7f92c2bcbeb42ce87770a7565f0e6f92c8134354",
         "type": "github"
       },
       "original": {
@@ -530,11 +530,11 @@
     "trackerlist": {
       "flake": false,
       "locked": {
-        "lastModified": 1772924980,
-        "narHash": "sha256-47Q6O7vNQZy2hMImW06jwaZvRVV/YzXMAPIbYyhSHN0=",
+        "lastModified": 1773184165,
+        "narHash": "sha256-uGD+QgYZD1ntXl43523bKziyBUs1c3ONi+n5FeFZre0=",
         "owner": "ngosang",
         "repo": "trackerslist",
-        "rev": "01092a95d06dccfe822fcded7bd33b32b5021f52",
+        "rev": "448eba328ad00172a4ba049ec9f9f073b9cd278b",
         "type": "github"
       },
       "original": {
@@ -579,17 +579,17 @@
     "website": {
       "flake": false,
       "locked": {
-        "lastModified": 1768266466,
-        "narHash": "sha256-d4dZzEcIKuq4DhNtXczaflpRifAtcOgNr45W2Bexnps=",
+        "lastModified": 1773169503,
+        "narHash": "sha256-P+T2H18k3zmEHxu7ZIDYyTrK5G3KUcZYW1AzVMKyCMs=",
         "ref": "refs/heads/main",
-        "rev": "06011a27456b3b9f983ef1aa142b5773bcb52b6e",
-        "revCount": 23,
+        "rev": "ae7a7d8325f841c52efb6fd81c4956b84631aa06",
+        "revCount": 24,
         "type": "git",
-        "url": "https://git.gardling.com/titaniumtown/website"
+        "url": "https://git.sigkill.computer/titaniumtown/website"
       },
       "original": {
         "type": "git",
-        "url": "https://git.gardling.com/titaniumtown/website"
+        "url": "https://git.sigkill.computer/titaniumtown/website"
       }
     },
     "ytbn-graphing-software": {
@@ -605,11 +605,11 @@
         "rev": "ac6265eae734363f95909df9a3739bf6360fa721",
         "revCount": 1130,
         "type": "git",
-        "url": "https://git.gardling.com/titaniumtown/YTBN-Graphing-Software"
+        "url": "https://git.sigkill.computer/titaniumtown/YTBN-Graphing-Software"
       },
       "original": {
         "type": "git",
-        "url": "https://git.gardling.com/titaniumtown/YTBN-Graphing-Software"
+        "url": "https://git.sigkill.computer/titaniumtown/YTBN-Graphing-Software"
       }
     }
   },

flake.nix

@@ -56,7 +56,7 @@
     };
 
     website = {
-      url = "git+https://git.gardling.com/titaniumtown/website";
+      url = "git+https://git.sigkill.computer/titaniumtown/website";
       flake = false;
     };
 
@@ -66,7 +66,7 @@
     };
 
     ytbn-graphing-software = {
-      url = "git+https://git.gardling.com/titaniumtown/YTBN-Graphing-Software";
+      url = "git+https://git.sigkill.computer/titaniumtown/YTBN-Graphing-Software";
     };
 
     arr-init = {

service-configs.nix

@@ -45,7 +45,8 @@ rec {
 
   https = {
     certs = services_dir + "/http_certs";
-    domain = "gardling.com";
+    domain = "sigkill.computer";
+    old_domain = "gardling.com"; # Redirect traffic from old domain
   };
 
   gitea = {

services/caddy.nix

@@ -41,6 +41,9 @@ let
       hugo --minify -d $out;
     '';
   };
+
+  newDomain = service_configs.https.domain;
+  oldDomain = service_configs.https.old_domain;
 in
 {
   imports = [
@@ -52,14 +55,53 @@ in
   services.caddy = {
     enable = true;
     email = "titaniumtown@proton.me";
+
+    # Enable on-demand TLS for old domain redirects
+    # Certs are issued dynamically when subdomains are accessed
+    globalConfig = ''
+      on_demand_tls {
+        ask http://localhost:9123/check
+      }
+    '';
+
+    # Internal endpoint to validate on-demand TLS requests
+    # Only allows certs for *.${oldDomain}
+    extraConfig = ''
+      http://localhost:9123 {
+        @allowed expression {query.domain}.endsWith(".${oldDomain}") || {query.domain} == "${oldDomain}" || {query.domain} == "www.${oldDomain}"
+        respond @allowed 200
+        respond 403
+      }
+    '';
+
     virtualHosts = {
-      ${service_configs.https.domain} = {
+      ${newDomain} = {
         extraConfig = ''
           root * ${hugoWebsite}
           file_server browse
         '';
 
-        serverAliases = [ "www.${service_configs.https.domain}" ];
+        serverAliases = [ "www.${newDomain}" ];
+      };
+
+      # Redirect old domain (bare + www) to new domain
+      ${oldDomain} = {
+        extraConfig = ''
+          redir https://${newDomain}{uri} permanent
+        '';
+        serverAliases = [ "www.${oldDomain}" ];
+      };
+
+      # Wildcard redirect for all old domain subdomains
+      # Uses on-demand TLS - certs issued automatically on first request
+      "*.${oldDomain}" = {
+        extraConfig = ''
+          tls {
+            on_demand
+          }
+          # {labels.2} extracts subdomain from *.gardling.com
+          redir https://{labels.2}.${newDomain}{uri} permanent
+        '';
       };
     };
   };

services/qbittorrent.nix

@@ -102,7 +102,6 @@
         ChokingAlgorithm = "RateBased";
         PieceExtentAffinity = true;
         SuggestMode = true;
-        CoalesceReadWrite = true;
 
         # max_queued_disk_bytes: the max bytes waiting in the disk I/O queue.
         # When this limit is reached, peer connections stop reading from their
@@ -112,6 +111,12 @@
         # where ZFS txg commits cause periodic I/O stalls.
         DiskQueueSize = 67108864; # 64MB
 
+        # POSIX-compliant disk I/O: uses pread/pwrite instead of mmap.
+        # On ZFS, mmap forces data into BOTH ARC and Linux page cache (double-caching),
+        # wasting RAM. pread/pwrite goes only through ARC, maximizing its effectiveness.
+        # Saved 26 gb of memory!!
+        DiskIOType = "Posix";
+
         # === Network buffer tuning (from libtorrent high_performance_seed preset) ===
         # "always stuff at least 1 MiB down each peer pipe, to quickly ramp up send rates"
         SendBufferLowWatermark = 1024; # 1MB (KiB) -- matches high_performance_seed