diff --git a/flake.lock b/flake.lock
index 1549b21..f0853d5 100644
--- a/flake.lock
+++ b/flake.lock
@@ -43,6 +43,33 @@
         "type": "github"
       }
     },
+    "custom-nixpkgs": {
+      "inputs": {
+        "fenix": [
+          "fenix"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-manifest": "rust-manifest",
+        "systems": [
+          "systems"
+        ]
+      },
+      "locked": {
+        "lastModified": 1692917810,
+        "narHash": "sha256-yphwiZk+F221jYQHPNUGAoy/MJI3usdgtzdVG+7oKFY=",
+        "owner": "msfjarvis",
+        "repo": "custom-nixpkgs",
+        "rev": "3b29b3378dc3f5abb36d670ca16aa566ea17a47d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "msfjarvis",
+        "repo": "custom-nixpkgs",
+        "type": "github"
+      }
+    },
     "devshell": {
       "inputs": {
         "nixpkgs": [
@@ -143,6 +170,7 @@
       "inputs": {
         "advisory-db": "advisory-db",
         "crane": "crane",
+        "custom-nixpkgs": "custom-nixpkgs",
         "devshell": "devshell",
         "fenix": "fenix",
         "flake-compat": "flake-compat",
@@ -168,6 +196,18 @@
         "type": "github"
       }
     },
+    "rust-manifest": {
+      "flake": false,
+      "locked": {
+        "narHash": "sha256-emILH39kZmz9D2cquaobdM55EakoGkUxn1sY3r1iYNg=",
+        "type": "file",
+        "url": "https://static.rust-lang.org/dist/2023-07-08/channel-rust-nightly.toml"
+      },
+      "original": {
+        "type": "file",
+        "url": "https://static.rust-lang.org/dist/2023-07-08/channel-rust-nightly.toml"
+      }
+    },
     "rust-overlay": {
       "inputs": {
         "flake-utils": [
diff --git a/flake.nix b/flake.nix
index 023ed5f..bcf043c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -13,6 +13,11 @@
   inputs.crane.inputs.flake-utils.follows = "flake-utils";
   inputs.crane.inputs.nixpkgs.follows = "nixpkgs";
 
+  inputs.custom-nixpkgs.url = "github:msfjarvis/custom-nixpkgs";
+  inputs.custom-nixpkgs.inputs.nixpkgs.follows = "nixpkgs";
+  inputs.custom-nixpkgs.inputs.fenix.follows = "fenix";
+  inputs.custom-nixpkgs.inputs.systems.follows = "systems";
+
   inputs.devshell.url = "github:numtide/devshell";
   inputs.devshell.inputs.nixpkgs.follows = "nixpkgs";
   inputs.devshell.inputs.systems.follows = "systems";
@@ -31,6 +36,7 @@
     nixpkgs,
     advisory-db,
     crane,
+    custom-nixpkgs,
     devshell,
     fenix,
     flake-utils,
@@ -39,7 +45,7 @@
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = import nixpkgs {
         inherit system;
-        overlays = [devshell.overlays.default];
+        overlays = [custom-nixpkgs.overlays.default devshell.overlays.default];
       };
 
       rustNightly = (import fenix {inherit pkgs;}).fromToolchainFile {
@@ -90,7 +96,7 @@
         ];
 
         packages = with pkgs; [
-          cargo-dist
+          cargo-dist-unstable
           cargo-nextest
           cargo-release
           rustNightly