diff --git a/flake.nix b/flake.nix
index 68fba96..e7da03c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,7 +44,7 @@
 
             # Programs you want to make available in the shell.
             # Default programs can be disabled by setting to 'null'
-            tools = hp: { ghcid = null; yesod-bin = hp.yesod-bin;};
+            tools = hp: { ghcid = null; yesod-bin = hp.yesod-bin; stack = pkgs.stack;};
 
             hlsCheck.enable = pkgs.stdenv.isDarwin; # On darwin, sandbox is disabled, so HLS can use the network.
           };
diff --git a/package.yaml b/package.yaml
new file mode 100644
index 0000000..a4617eb
--- /dev/null
+++ b/package.yaml
@@ -0,0 +1,100 @@
+name:    OwOpointTracker
+version: "0.0.0"
+
+dependencies:
+
+- base >=4.9.1.0 && <5
+- yesod >=1.6 && <1.7
+- yesod-core >=1.6 && <1.7
+- yesod-auth >=1.6 && <1.7
+- yesod-static >=1.6 && <1.7
+- yesod-form >=1.6 && <1.8
+- classy-prelude >=1.5 && <1.6
+- classy-prelude-conduit >=1.5 && <1.6
+- classy-prelude-yesod >=1.5 && <1.6
+- bytestring >=0.10 && <0.12
+- text >=0.11 && <2.0
+- persistent >=2.9 && <2.14
+- persistent-sqlite >=2.9 && <2.14
+- persistent-template >=2.5 && <2.14
+- template-haskell
+- shakespeare >=2.0 && <2.1
+- hjsmin >=0.1 && <0.3
+- monad-control >=0.3 && <1.1
+- wai-extra >=3.0 && <3.2
+- yaml >=0.11 && <0.12
+- http-client-tls >=0.3 && <0.4
+- http-conduit >=2.3 && <2.4
+- directory >=1.1 && <1.4
+- warp >=3.0 && <3.4
+- data-default
+- aeson >=1.4 && <2.1
+- conduit >=1.0 && <2.0
+- monad-logger >=0.3 && <0.4
+- fast-logger >=2.2 && <3.2
+- wai-logger >=2.2 && <2.5
+- file-embed
+- safe
+- unordered-containers
+- containers
+- vector
+- time
+- case-insensitive
+- wai
+- foreign-store
+
+# The library contains all of our application code. The executable
+# defined below is just a thin wrapper.
+library:
+  source-dirs: src
+  when:
+  - condition: (flag(dev)) || (flag(library-only))
+    then:
+      ghc-options:
+      - -Wall
+      - -fwarn-tabs
+      - -O0
+      cpp-options: -DDEVELOPMENT
+    else:
+      ghc-options:
+      - -Wall
+      - -fwarn-tabs
+      - -O2
+
+# Runnable executable for our application
+executables:
+  OwOpointTracker:
+    main: main.hs
+    source-dirs: app
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N
+    dependencies:
+    - OwOpointTracker
+    when:
+    - condition: flag(library-only)
+      buildable: false
+
+# Test suite
+tests:
+  OwOpointTracker-test:
+    main: Spec.hs
+    source-dirs: test
+    ghc-options: -Wall
+    dependencies:
+    - OwOpointTracker
+    - hspec >=2.0.0
+    - yesod-test
+    - microlens
+
+# Define flags used by "yesod devel" to make compilation faster
+flags:
+  library-only:
+    description: Build for use with "yesod devel"
+    manual: false
+    default: false
+  dev:
+    description: Turn on development settings, like auto-reload templates.
+    manual: false
+    default: false