diff --git a/pkgs/development/libraries/matrix-sdk-crypto-nodejs/Cargo-beta.3.lock b/pkgs/by-name/ma/matrix-appservice-slack/matrix-sdk-crypto-nodejs-0_1_0-beta_3/Cargo-beta.3.lock
similarity index 100%
rename from pkgs/development/libraries/matrix-sdk-crypto-nodejs/Cargo-beta.3.lock
rename to pkgs/by-name/ma/matrix-appservice-slack/matrix-sdk-crypto-nodejs-0_1_0-beta_3/Cargo-beta.3.lock
diff --git a/pkgs/development/libraries/matrix-sdk-crypto-nodejs/beta3.nix b/pkgs/by-name/ma/matrix-appservice-slack/matrix-sdk-crypto-nodejs-0_1_0-beta_3/package.nix
similarity index 100%
rename from pkgs/development/libraries/matrix-sdk-crypto-nodejs/beta3.nix
rename to pkgs/by-name/ma/matrix-appservice-slack/matrix-sdk-crypto-nodejs-0_1_0-beta_3/package.nix
diff --git a/pkgs/development/libraries/matrix-sdk-crypto-nodejs/remove-duplicate-dependency.patch b/pkgs/by-name/ma/matrix-appservice-slack/matrix-sdk-crypto-nodejs-0_1_0-beta_3/remove-duplicate-dependency.patch
similarity index 100%
rename from pkgs/development/libraries/matrix-sdk-crypto-nodejs/remove-duplicate-dependency.patch
rename to pkgs/by-name/ma/matrix-appservice-slack/matrix-sdk-crypto-nodejs-0_1_0-beta_3/remove-duplicate-dependency.patch
diff --git a/pkgs/by-name/ma/matrix-appservice-slack/package.nix b/pkgs/by-name/ma/matrix-appservice-slack/package.nix
index c4f5f168e2e0..b37ebccbf2f2 100644
--- a/pkgs/by-name/ma/matrix-appservice-slack/package.nix
+++ b/pkgs/by-name/ma/matrix-appservice-slack/package.nix
@@ -3,15 +3,15 @@
   fetchFromGitHub,
   fetchYarnDeps,
   makeWrapper,
-  matrix-sdk-crypto-nodejs-0_1_0-beta_3,
   mkYarnPackage,
   nodejs_18,
+  callPackage,
 }:
 
 let
   data = lib.importJSON ./pin.json;
-  matrix-sdk-crypto-nodejs = matrix-sdk-crypto-nodejs-0_1_0-beta_3;
   nodejs = nodejs_18;
+  matrix-sdk-crypto-nodejs = callPackage ./matrix-sdk-crypto-nodejs-0_1_0-beta_3/package.nix { };
 in
 mkYarnPackage rec {
   inherit nodejs;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 278cc5f41844..af3d392a0330 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4156,7 +4156,6 @@ with pkgs;
   };
 
   matrix-sdk-crypto-nodejs = callPackage ../development/libraries/matrix-sdk-crypto-nodejs { };
-  matrix-sdk-crypto-nodejs-0_1_0-beta_3 = callPackage ../development/libraries/matrix-sdk-crypto-nodejs/beta3.nix { };
 
   makemkv = libsForQt5.callPackage ../applications/video/makemkv { };