diff --git a/flake.lock b/flake.lock
index 7954c3c..79b2455 100644
--- a/flake.lock
+++ b/flake.lock
@@ -803,6 +803,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-radicale": {
+      "locked": {
+        "lastModified": 1735496163,
+        "narHash": "sha256-oqUP98g0eqfzCDA/i88qRIBq4BIyxEk9um7dfNGiw+I=",
+        "owner": "erictapen",
+        "repo": "nixpkgs",
+        "rev": "e14050d0c94dc929543f7e4502fda8539d36536f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "erictapen",
+        "ref": "radicale",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-stable": {
       "locked": {
         "lastModified": 1730741070,
@@ -986,6 +1002,7 @@
         "nixpkgs": "nixpkgs_3",
         "nixpkgs-bazarr": "nixpkgs-bazarr",
         "nixpkgs-jellyseerr": "nixpkgs-jellyseerr",
+        "nixpkgs-radicale": "nixpkgs-radicale",
         "servers": "servers",
         "treefmt-nix": "treefmt-nix_4"
       }
diff --git a/flake.nix b/flake.nix
index 6f68832..35d84fc 100644
--- a/flake.nix
+++ b/flake.nix
@@ -7,6 +7,7 @@
     treefmt-nix.url = "github:numtide/treefmt-nix";
     nixpkgs-jellyseerr.url = "github:coonce/nixpkgs?ref=jellyseerr";
     nixpkgs-bazarr.url = "github:r-ryantm/nixpkgs?ref=auto-update/bazarr";
+    nixpkgs-radicale.url = "github:erictapen/nixpkgs?ref=radicale";
 
     git-hooks = {
       url = "github:cachix/git-hooks.nix";
diff --git a/nixng-configurations/default.nix b/nixng-configurations/default.nix
index a97a5db..a40ccfe 100644
--- a/nixng-configurations/default.nix
+++ b/nixng-configurations/default.nix
@@ -7,6 +7,7 @@
   nixpkgs,
   nixpkgs-jellyseerr,
   nixpkgs-bazarr,
+  nixpkgs-radicale,
   ...
 }:
 flake-utils.lib.eachDefaultSystem (system: let
@@ -40,6 +41,7 @@ in {
             (final: _prev: {
               bazarr = nixpkgs-bazarr.legacyPackages.${system}.bazarr;
               jellyseerr = nixpkgs-jellyseerr.legacyPackages.${system}.jellyseerr;
+              radicale = nixpkgs-radicale.legacyPackages.${system}.radicale;
             })
           ];
         }