diff --git a/cabal.project b/cabal.project
index b64879bcfa2..986597ec1ac 100644
--- a/cabal.project
+++ b/cabal.project
@@ -68,3 +68,55 @@ allow-newer:
 -- IMPORTANT
 -- Do NOT add more source-repository-package stanzas here unless they are strictly
 -- temporary! Please read the section in CONTRIBUTING about updating dependencies.
+
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/ouroboros-network.git
+  tag: 4920b7a8e1a639e6b6a85611bef6d541e21d012a
+  --sha256: sha256-mrGXtC/mStln5KqoXlruKYl2vHYZhgw3biRlZm82h7A=
+  subdir:
+    cardano-client
+    cardano-ping
+    monoidal-synchronisation
+    network-mux
+    ntp-client
+    ouroboros-network
+    ouroboros-network-api
+    ouroboros-network-framework
+    ouroboros-network-mock
+    ouroboros-network-protocols
+    ouroboros-network-testing
+    quickcheck-monoids
+
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/ouroboros-consensus.git
+  tag: 038f9d6c5e4d6de7d2cfb2ac9e23d3b66c495418
+  --sha256: sha256-jzfJNLl8GfCTEP5ABpHZl6qps7U6NZi36UxYxooKH+A=
+  subdir:
+    ouroboros-consensus
+    ouroboros-consensus-cardano
+    ouroboros-consensus-protocol
+    ouroboros-consensus-diffusion
+
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/cardano-api.git
+  tag: a969b0b69c704d623cf6b749de03455595516317
+  --sha256: sha256-aGVsk71QTJbHWH3+Ed8W3W8eTL4V+anGYKCPBmKgx64=
+  subdir:
+    cardano-api
+
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/cardano-cli.git
+  tag: 17ca777d37e2f6dc7c80727231add3fbd2ad0f9e
+  --sha256: sha256-+OtdedCtH1HXzg3iRjGtpmtY8TtlAU8YAv6oblVFhes=
+  subdir:
+    cardano-cli
+
+source-repository-package
+  type: git
+  location: https://github.com/neilmayhew/ekg-forward.git
+  tag: 4ba8bb693093f6cf54d43d6e9bbce1e08b0457dd
+  --sha256: sha256-g0gYqzRGjmZwxEzihJ4JifJe+GRfdLIMzaot7rUcjlI=
diff --git a/nix/haskell.nix b/nix/haskell.nix
index 3a0975211f8..4b37f166cf7 100644
--- a/nix/haskell.nix
+++ b/nix/haskell.nix
@@ -22,7 +22,7 @@ let
       name = "cardano-node";
       compiler-nix-name = lib.mkDefault "ghc8107";
       # extra-compilers
-      flake.variants = lib.genAttrs ["ghc96"] (x: {compiler-nix-name = x;});
+      flake.variants = lib.genAttrs ["ghc96" "ghc98" "ghc910"] (x: {compiler-nix-name = x;});
       cabalProjectLocal = ''
         repository cardano-haskell-packages-local
           url: file:${CHaP}