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custom-add-ons_1.md

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+## Custom Add-ons for your Sovran Pro or Sovran Pro Max
+
+Add-ons are extra features you can have installed before your Sovran Pro is shipped to you. 
+
+1. Since Sovran_SystemsOS runs Bitcoin Knots by default as opposed to Bitcion Core, you can customize your Sovran Pro or Sovran Pro Max node to run Bitcoin Core.
+
+https://github.com/bitcoin/bitcoin
+
+
+2. The Bitcoin Mempool can be added and can be accessed via Tor or on your local network.
+
+https://github.com/mempool/mempool
+
+
+The code will be installed in the `custom.nix` file.
+
+
+The code for Bitcoin Core is as follows:
+
+```nix
+services.bitcoind.package = lib.mkForce config.nix-bitcoin.pkgs.bitcoind;
+```
+
+
+The code for Mempool is as follows:
+
+```nix
+services.mempool = {
+    enable = true;
+    frontend.enable = true;
+};
+
+services.mysql.package = lib.mkForce pkgs.mariadb;
+
+nix-bitcoin.onionServices.mempool-frontend.enable = true;
+
+services.caddy = {
+    virtualHosts = {
+        ":60847" = {
+            extraConfig = ''
+			    reverse_proxy :60845
+				encode gzip zstd
+			'';
+		};
+    };
+};
+```