add aria2

modules/home-manager/aria2/default.nix

@@ -0,0 +1,44 @@
+{...}: {
+  programs.aria2 = {
+    enable = true;
+    settings = {
+      file-allocation = "none";
+      log-level = "warn";
+      max-connection-per-server = 16;
+      min-split-size = "1M";
+      human-readable = true;
+      reuse-uri = true;
+      rpc-save-upload-metadata = true;
+      max-file-not-found = 0;
+      remote-time = true;
+      async-dns = true;
+      stop = 0;
+      allow-piece-length-change = true;
+      optimize-concurrent-downloads = true;
+      deferred-input = true;
+      continue = true;
+      check-integrity = true;
+      realtime-chunk-checksum = true;
+      piece-length = "1M";
+      split = 16;
+      # Seconds:
+      save-session-interval = 60;
+      # Caches in memory
+      disk-cache = "32M";
+      save-not-found = true;
+      download-result = "full";
+      truncate-console-readout = true;
+      retry-wait = 30;
+      max-tries = 15;
+      enable-color = true;
+      enable-http-keep-alive = true;
+      enable-http-pipelining = true;
+      http-accept-gzip = true;
+      follow-torrent = true;
+      bt-save-metadata = true;
+      seed-time = 0;
+      bt-load-saved-metadata = true;
+      metalink-preferred-protocol = "https";
+    };
+  };
+}