diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..0571e93
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,25 @@
+name: ci
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+jobs:
+  build:
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-10.15
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2.3.4
+        name: Checkout
+      - uses: cachix/install-nix-action@v13
+        name: Install Nix
+      - uses: cachix/cachix-action@v10
+        name: Set up Cachix
+        with:
+          name: awakesecurity
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+      - run: nix-build --attr grpc-haskell
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index da64c63..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-language: nix
-script: nix-build --attr grpc-haskell release.nix
diff --git a/default.nix b/default.nix
deleted file mode 100644
index aaf4569..0000000
--- a/default.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-{ mkDerivation, async, base, bytestring, clock, containers
-, criterion, grpc-haskell-core, managed, pipes, proto3-suite
-, proto3-wire, QuickCheck, random, safe, stdenv, tasty, tasty-hunit
-, tasty-quickcheck, text, time, transformers, turtle, unix
-}:
-mkDerivation {
-  pname = "grpc-haskell";
-  version = "0.0.2.0";
-  src = ./.;
-  isLibrary = true;
-  isExecutable = true;
-  libraryHaskellDepends = [
-    async base bytestring grpc-haskell-core managed proto3-suite
-    proto3-wire
-  ];
-  testHaskellDepends = [
-    async base bytestring clock containers managed pipes proto3-suite
-    QuickCheck safe tasty tasty-hunit tasty-quickcheck text time
-    transformers turtle unix
-  ];
-  benchmarkHaskellDepends = [
-    async base bytestring criterion proto3-suite random
-  ];
-  homepage = "https://github.com/awakenetworks/gRPC-haskell";
-  description = "Haskell implementation of gRPC layered on shared C library";
-  license = stdenv.lib.licenses.asl20;
-}
diff --git a/default.nix b/default.nix
new file mode 120000
index 0000000..ca14ab7
--- /dev/null
+++ b/default.nix
@@ -0,0 +1 @@
+release.nix
\ No newline at end of file
diff --git a/release.nix b/release.nix
index 45d8be5..8d8542a 100644
--- a/release.nix
+++ b/release.nix
@@ -22,12 +22,6 @@
 # rebuild the repository from scratch every time, which is extremely slow.  Only
 # do this if you want to exactly reproduce our continuous integration build.
 #
-# If you update the `grpc-haskell.cabal` file (such as changing dependencies or
-# adding new library/executable/test/benchmark sections), then update the
-# `default.nix` expression by running:
-#
-#     $ cabal2nix . > default.nix
-#
 # By default, Nix will pick a version for each one of your Haskell dependencies.
 # If you would like to select a different version then, run:
 #
@@ -107,13 +101,13 @@ let
         grpc-haskell-no-tests =
           pkgsNew.haskell.lib.buildFromSdist (pkgsNew.usesGRPC
             (pkgsNew.haskell.lib.dontCheck
-              (haskellPackagesNew.callPackage ./default.nix { })
+              (haskellPackagesNew.callCabal2nix "grpc-haskell" ./. { })
             ));
 
         grpc-haskell =
           pkgsNew.usesGRPC
             (pkgsNew.haskell.lib.overrideCabal
-              (pkgsNew.haskell.lib.buildFromSdist ((haskellPackagesNew.callPackage ./default.nix { })))
+              (pkgsNew.haskell.lib.buildFromSdist (haskellPackagesNew.callCabal2nix "grpc-haskell" ./. { }))
               (oldDerivation:
                 let
                   ghc =