diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..59e86fb
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,7 @@
+Copyright 2024 Alice Huston
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/checks.nix b/checks.nix
index 1da2fc7..2bc11b6 100644
--- a/checks.nix
+++ b/checks.nix
@@ -4,7 +4,7 @@
   formatter,
   ...
 }:
- {
+{
   pre-commit-check = inputs.pre-commit-hooks.lib.${system}.run {
     src = ./.;
     hooks = {
diff --git a/flake.nix b/flake.nix
index e9245d4..0fee803 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,8 +18,16 @@
     };
   };
 
-  outputs = { self, nixpkgs, flake-utils, poetry2nix,pre-commit-hooks }@inputs:
-    flake-utils.lib.eachDefaultSystem (system:
+  outputs =
+    {
+      self,
+      nixpkgs,
+      flake-utils,
+      poetry2nix,
+      ...
+    }@inputs:
+    flake-utils.lib.eachDefaultSystem (
+      system:
       let
         # see https://github.com/nix-community/poetry2nix/tree/master#api for more functions and examples.
         pkgs = nixpkgs.legacyPackages.${system};
@@ -33,7 +41,18 @@
 
         formatter = pkgs.nixfmt-rfc-style;
 
-        devShells = import ./shell.nix {inherit self inputs system checks;};
-        checks = import ./checks.nix {inherit inputs system formatter;};
-      });
+        devShells = import ./shell.nix {
+          inherit
+            self
+            inputs
+            system
+            checks
+            ;
+        };
+        checks = import ./checks.nix { inherit inputs system formatter; };
+      }
+    )
+    // {
+      hydraJobs = import ./hydra/jobs.nix { inherit (self) inputs outputs; };
+    };
 }
diff --git a/hydra/jobs.nix b/hydra/jobs.nix
new file mode 100644
index 0000000..2e30f2f
--- /dev/null
+++ b/hydra/jobs.nix
@@ -0,0 +1,19 @@
+{ inputs, outputs }:
+let
+  inherit (inputs.nixpkgs) lib;
+
+  notBroken = pkg: !(pkg.meta.broken or false);
+  isDistributable = pkg: (pkg.meta.license or { redistributable = true; }).redistributable;
+  hasPlatform = sys: pkg: lib.elem sys (pkg.meta.platforms or [ sys ]);
+  filterValidPkgs =
+    sys: pkgs:
+    lib.filterAttrs (
+      _: pkg: lib.isDerivation pkg && hasPlatform sys pkg && notBroken pkg && isDistributable pkg
+    ) pkgs;
+in
+# getCfg = _: cfg: cfg.config.system.build.toplevel;
+{
+  # hosts = lib.mapAttrs getCfg outputs.nixosConfigurations;
+  inherit (outputs) devShells checks formatter;
+  packages = lib.mapAttrs filterValidPkgs outputs.packages;
+}
diff --git a/hydra/jobsets.nix b/hydra/jobsets.nix
new file mode 100644
index 0000000..03654ce
--- /dev/null
+++ b/hydra/jobsets.nix
@@ -0,0 +1,87 @@
+{ pulls, branches, ... }:
+let
+  # create the json spec for the jobset
+  makeSpec =
+    contents:
+    builtins.derivation {
+      name = "spec.json";
+      system = "x86_64-linux";
+      preferLocalBuild = true;
+      allowSubstitutes = false;
+      builder = "/bin/sh";
+      args = [
+        (builtins.toFile "builder.sh" ''
+          echo "$contents" > $out
+        '')
+      ];
+      contents = builtins.toJSON contents;
+    };
+
+  prs = readJSONFile pulls;
+  refs = readJSONFile branches;
+  repo = "ahuston-0/canvas_grit_automation";
+
+  # template for creating a job
+  makeJob =
+    {
+      schedulingshares ? 10,
+      keepnr ? 3,
+      description,
+      flake,
+    }:
+    {
+      inherit
+        description
+        flake
+        schedulingshares
+        keepnr
+        ;
+      enabled = 1;
+      type = 1;
+      hidden = false;
+      checkinterval = 300; # every 6 months
+      enableemail = false;
+      emailoverride = "";
+    };
+
+  # Create a hydra job for a branch
+  jobOfRef =
+    name:
+    { ref, ... }:
+    if (builtins.match "^refs/heads/(.*)$" ref) == null then
+      null
+    else
+      {
+        name = builtins.replaceStrings [ "/" ] [ "-" ] "branch-${name}";
+        value = makeJob {
+          description = "Branch ${name}";
+          flake = "git+ssh://git@github.com/${repo}?ref=${ref}";
+        };
+      };
+
+  # Create a hydra job for a PR
+  jobOfPR = id: info: {
+    name = "pr-${id}";
+    value = makeJob {
+      description = "PR ${id}: ${info.title}";
+      flake = "git+ssh://git@github.com/${info.head.repo.full_name}?ref=${info.head.ref}";
+    };
+  };
+
+  # some utility functions
+  # converts json to name/value dicts
+  attrsToList = l: builtins.attrValues (builtins.mapAttrs (name: value: { inherit name value; }) l);
+  # wrapper function for reading json from file
+  readJSONFile = f: builtins.fromJSON (builtins.readFile f);
+  # remove null values from a set, in-case of branches that don't exist
+  mapFilter = f: l: builtins.filter (x: x != null) (map f l);
+
+  # Create job set from PRs and branches
+  jobs = makeSpec (
+    builtins.listToAttrs (map ({ name, value }: jobOfPR name value) (attrsToList prs))
+    // builtins.listToAttrs (mapFilter ({ name, value }: jobOfRef name value) (attrsToList refs))
+  );
+in
+{
+  jobsets = jobs;
+}
diff --git a/hydra/spec.json b/hydra/spec.json
new file mode 100644
index 0000000..be4a62b
--- /dev/null
+++ b/hydra/spec.json
@@ -0,0 +1,35 @@
+{
+  "enabled": 1,
+  "hidden": false,
+  "description": "Canvas grit automation",
+  "nixexprinput": "nixexpr",
+  "nixexprpath": "hydra/jobsets.nix",
+  "checkinterval": 60,
+  "schedulingshares": 100,
+  "enableemail": false,
+  "emailoverride": "",
+  "keepnr": 3,
+  "type": 0,
+  "inputs": {
+    "nixexpr": {
+      "value": "https://github.com/ahuston-0/canvas_grit_automation master",
+      "type": "git",
+      "emailresponsible": false
+    },
+    "nixpkgs": {
+      "value": "https://github.com/NixOS/nixpkgs nixos-unstable-small",
+      "type": "git",
+      "emailresponsible": false
+    },
+    "pulls": {
+      "type": "githubpulls",
+      "value": "ahuston-0 canvas_grit_automation",
+      "emailresponsible": false
+    },
+    "branches": {
+      "type": "github_refs",
+      "value": "ahuston-0 canvas_grit_automation heads -",
+      "emailresponsible": false
+    }
+  }
+}
diff --git a/poetry.lock b/poetry.lock
index 3ba2a59..d16b581 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -73,28 +73,29 @@ test = ["objgraph", "psutil"]
 
 [[package]]
 name = "ruff"
-version = "0.4.10"
+version = "0.5.1"
 description = "An extremely fast Python linter and code formatter, written in Rust."
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "ruff-0.4.10-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:5c2c4d0859305ac5a16310eec40e4e9a9dec5dcdfbe92697acd99624e8638dac"},
-    {file = "ruff-0.4.10-py3-none-macosx_11_0_arm64.whl", hash = "sha256:a79489607d1495685cdd911a323a35871abfb7a95d4f98fc6f85e799227ac46e"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:b1dd1681dfa90a41b8376a61af05cc4dc5ff32c8f14f5fe20dba9ff5deb80cd6"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:c75c53bb79d71310dc79fb69eb4902fba804a81f374bc86a9b117a8d077a1784"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:18238c80ee3d9100d3535d8eb15a59c4a0753b45cc55f8bf38f38d6a597b9739"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_ppc64.manylinux2014_ppc64.whl", hash = "sha256:d8f71885bce242da344989cae08e263de29752f094233f932d4f5cfb4ef36a81"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:330421543bd3222cdfec481e8ff3460e8702ed1e58b494cf9d9e4bf90db52b9d"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:9e9b6fb3a37b772628415b00c4fc892f97954275394ed611056a4b8a2631365e"},
-    {file = "ruff-0.4.10-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:0f54c481b39a762d48f64d97351048e842861c6662d63ec599f67d515cb417f6"},
-    {file = "ruff-0.4.10-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:67fe086b433b965c22de0b4259ddfe6fa541c95bf418499bedb9ad5fb8d1c631"},
-    {file = "ruff-0.4.10-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:acfaaab59543382085f9eb51f8e87bac26bf96b164839955f244d07125a982ef"},
-    {file = "ruff-0.4.10-py3-none-musllinux_1_2_i686.whl", hash = "sha256:3cea07079962b2941244191569cf3a05541477286f5cafea638cd3aa94b56815"},
-    {file = "ruff-0.4.10-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:338a64ef0748f8c3a80d7f05785930f7965d71ca260904a9321d13be24b79695"},
-    {file = "ruff-0.4.10-py3-none-win32.whl", hash = "sha256:ffe3cd2f89cb54561c62e5fa20e8f182c0a444934bf430515a4b422f1ab7b7ca"},
-    {file = "ruff-0.4.10-py3-none-win_amd64.whl", hash = "sha256:67f67cef43c55ffc8cc59e8e0b97e9e60b4837c8f21e8ab5ffd5d66e196e25f7"},
-    {file = "ruff-0.4.10-py3-none-win_arm64.whl", hash = "sha256:dd1fcee327c20addac7916ca4e2653fbbf2e8388d8a6477ce5b4e986b68ae6c0"},
-    {file = "ruff-0.4.10.tar.gz", hash = "sha256:3aa4f2bc388a30d346c56524f7cacca85945ba124945fe489952aadb6b5cd804"},
+    {file = "ruff-0.5.1-py3-none-linux_armv6l.whl", hash = "sha256:6ecf968fcf94d942d42b700af18ede94b07521bd188aaf2cd7bc898dd8cb63b6"},
+    {file = "ruff-0.5.1-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:204fb0a472f00f2e6280a7c8c7c066e11e20e23a37557d63045bf27a616ba61c"},
+    {file = "ruff-0.5.1-py3-none-macosx_11_0_arm64.whl", hash = "sha256:d235968460e8758d1e1297e1de59a38d94102f60cafb4d5382033c324404ee9d"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:38beace10b8d5f9b6bdc91619310af6d63dd2019f3fb2d17a2da26360d7962fa"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:5e478d2f09cf06add143cf8c4540ef77b6599191e0c50ed976582f06e588c994"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:f0368d765eec8247b8550251c49ebb20554cc4e812f383ff9f5bf0d5d94190b0"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_ppc64.manylinux2014_ppc64.whl", hash = "sha256:3a9a9a1b582e37669b0138b7c1d9d60b9edac880b80eb2baba6d0e566bdeca4d"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:bdd9f723e16003623423affabcc0a807a66552ee6a29f90eddad87a40c750b78"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:be9fd62c1e99539da05fcdc1e90d20f74aec1b7a1613463ed77870057cd6bd96"},
+    {file = "ruff-0.5.1-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e216fc75a80ea1fbd96af94a6233d90190d5b65cc3d5dfacf2bd48c3e067d3e1"},
+    {file = "ruff-0.5.1-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:c4c2112e9883a40967827d5c24803525145e7dab315497fae149764979ac7929"},
+    {file = "ruff-0.5.1-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:dfaf11c8a116394da3b65cd4b36de30d8552fa45b8119b9ef5ca6638ab964fa3"},
+    {file = "ruff-0.5.1-py3-none-musllinux_1_2_i686.whl", hash = "sha256:d7ceb9b2fe700ee09a0c6b192c5ef03c56eb82a0514218d8ff700f6ade004108"},
+    {file = "ruff-0.5.1-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:bac6288e82f6296f82ed5285f597713acb2a6ae26618ffc6b429c597b392535c"},
+    {file = "ruff-0.5.1-py3-none-win32.whl", hash = "sha256:5c441d9c24ec09e1cb190a04535c5379b36b73c4bc20aa180c54812c27d1cca4"},
+    {file = "ruff-0.5.1-py3-none-win_amd64.whl", hash = "sha256:b1789bf2cd3d1b5a7d38397cac1398ddf3ad7f73f4de01b1e913e2abc7dfc51d"},
+    {file = "ruff-0.5.1-py3-none-win_arm64.whl", hash = "sha256:2875b7596a740cbbd492f32d24be73e545a4ce0a3daf51e4f4e609962bfd3cd2"},
+    {file = "ruff-0.5.1.tar.gz", hash = "sha256:3164488aebd89b1745b47fd00604fb4358d774465f20d1fcd907f9c0fc1b0655"},
 ]
 
 [[package]]
@@ -198,4 +199,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "e2477b2e2162ec2a5bcf673756341f3aa6f2bdb83c5438b6c3bc8f7fced226e2"
+content-hash = "6ebb0770da484a771f8c11e7ba8100b3180b80c107e8b56d240036e7d2689506"
diff --git a/pyproject.toml b/pyproject.toml
index 136ed75..73d4253 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 name = "app"
 version = "0.1.0"
 description = ""
-authors = ["Your Name <you@example.com>"]
+authors = ["Alice Huston <aliceghuston@gmail.com>"]
 license = "MIT"
 readme = "README.md"
 
@@ -12,7 +12,7 @@ sqlalchemy = "^2.0.31"
 
 
 [tool.poetry.group.dev.dependencies]
-ruff = "^0.4.4"
+ruff = "0.5.1"
 
 [build-system]
 requires = ["poetry-core"]
diff --git a/shell.nix b/shell.nix
index 7be5d43..3fe8424 100644
--- a/shell.nix
+++ b/shell.nix
@@ -6,44 +6,40 @@
   ...
 }:
 
-  let
-    inherit (inputs) nixpkgs;
-    pkgs = nixpkgs.legacyPackages.${system};
+let
+  inherit (inputs) nixpkgs;
+  pkgs = nixpkgs.legacyPackages.${system};
 
-    # construct the shell provided by pre-commit for running hooks
-    pre-commit = pkgs.mkShell {
-      inherit (checks.pre-commit-check) shellHook;
-      buildInputs = checks.pre-commit-check.enabledPackages;
-    };
+  # construct the shell provided by pre-commit for running hooks
+  pre-commit = pkgs.mkShell {
+    inherit (checks.pre-commit-check) shellHook;
+    buildInputs = checks.pre-commit-check.enabledPackages;
+  };
 
-    # constructs a custom shell with commonly used utilities
-    rad-dev = pkgs.mkShell {
-      packages = with pkgs; [
-        deadnix
-        pre-commit
-        treefmt
-        statix
-        nixfmt-rfc-style
-      ];
-    };
+  # constructs a custom shell with commonly used utilities
+  rad-dev = pkgs.mkShell {
+    packages = with pkgs; [
+      deadnix
+      pre-commit
+      treefmt
+      statix
+      nixfmt-rfc-style
+    ];
+  };
 
-    # constructs the application in-place
-    app = pkgs.mkShell{
-      inputsFrom = [self.packages.${system}.myapp];
-    };
+  # constructs the application in-place
+  app = pkgs.mkShell { inputsFrom = [ self.packages.${system}.myapp ]; };
 
-    # pull in python/poetry dependencies
-    poetry = pkgs.mkShell {
-      pacakges = [pkgs.poetry];
-    };
-  in
-  {
-    default = pkgs.mkShell {
-      inputsFrom = [
-        pre-commit
-        rad-dev
-        app
-        poetry
-      ];
-    };
-  }
+  # pull in python/poetry dependencies
+  poetry = pkgs.mkShell { packages = [ pkgs.poetry ]; };
+in
+{
+  default = pkgs.mkShell {
+    inputsFrom = [
+      pre-commit
+      rad-dev
+      app
+      poetry
+    ];
+  };
+}
diff --git a/treefmt.toml b/treefmt.toml
new file mode 100644
index 0000000..2ae50b8
--- /dev/null
+++ b/treefmt.toml
@@ -0,0 +1,22 @@
+# One CLI to format the code tree - https://github.com/numtide/treefmt
+
+[global]
+# Glob patterns of files to exclude
+excludes = [ ".git/" ]
+
+
+[formatter.nixfmt]
+# Formatter to run
+command = "nixfmt"
+# Command-line arguments for the command
+#options = []
+# Glob pattern of files to include
+includes = [ "*.nix" ]
+
+[formatter.ruff]
+# Formatter to run
+command = "ruff"
+# Command-line arguments for the command
+options = ["format"]
+# Glob pattern of files to include
+includes = [ "*.py" ]