diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..ffc7ded
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+.git/
+bin/
+examples/
+README.md
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ae3c28f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,33 @@
+name: CI
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'codewars/purescript' }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: docker/setup-buildx-action@v2
+
+      - name: Build image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: false
+          # Make the image available in next step
+          load: true
+          tags: ghcr.io/codewars/purescript:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Run Passing Example
+        run: bin/run passing
+
+      - name: Report Image Size
+        run: |
+          echo "## Image Size" >> $GITHUB_STEP_SUMMARY
+          docker image inspect --format '{{.Size}}' ghcr.io/codewars/purescript:latest | numfmt --to=si --suffix=B >> $GITHUB_STEP_SUMMARY
diff --git a/.github/workflows/push-image.yml b/.github/workflows/push-image.yml
new file mode 100644
index 0000000..2cd61b3
--- /dev/null
+++ b/.github/workflows/push-image.yml
@@ -0,0 +1,39 @@
+# Build and push a Docker image to GitHub Container Registry when
+# a new tag is pushed.
+name: Push Image
+
+on:
+  push:
+    tags:
+      - "*"
+
+jobs:
+  build-and-push-image:
+    if: ${{ github.repository == 'codewars/purescript' }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: codewars
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/codewars/purescript:latest
+            ghcr.io/codewars/purescript:${{ github.ref_name }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..3b966bd
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,41 @@
+FROM buildpack-deps:bionic
+
+RUN set -ex; \
+    useradd --create-home codewarrior; \
+    ln -s /home/codewarrior /workspace;
+
+RUN set -ex; \
+    curl -sL https://deb.nodesource.com/setup_8.x | bash -; \
+    apt-get install -y nodejs; \
+    apt-get clean; \
+    rm -rf /var/lib/apt/lists/* /tmp/*;
+
+RUN set -ex; \
+    mkdir -p /opt/purescript; \
+    curl -fsSL https://github.com/purescript/purescript/releases/download/v0.12.2/linux64.tar.gz | tar xz -C /opt/purescript --strip-components=1; \
+    curl -fsSL https://github.com/purescript/psc-package/releases/download/v0.5.1/linux64.tar.gz | tar xz -C /opt/purescript --strip-components=1;
+
+RUN npm install -g pulp@12.3.1;
+
+COPY --chown=codewarrior:codewarrior workspace/ /workspace
+WORKDIR /workspace
+
+USER codewarrior
+
+ENV USER=codewarrior \
+    HOME=/home/codewarrior \
+    PATH=/opt/purescript:$PATH
+
+RUN set -ex; \
+    cd /workspace; \
+    npm install; \
+# install packages
+    psc-package install; \
+# compile packages
+    psc-package build; \
+# ensure running `Main.purs` works
+    pulp run; \
+# ensure testing works
+    pulp test || true; \
+# clean up
+    rm -rf ./src/Main.purs ./output/Main/ ./test/Example/ ./output/Example.ExampleSpec/;
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8e87d53
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# purescript
+
+Container image for PureScript
+
+## Usage
+
+```bash
+W=/workspace
+# Create container
+C=$(docker container create --rm -w $W ghcr.io/codewars/purescript:latest pulp test)
+
+# Copy files from the examples directory
+docker container cp ./examples/passing/. $C:$W
+
+# Start
+docker container start --attach $C
+```
+
+## Building
+
+```bash
+docker build -t ghcr.io/codewars/purescript:latest .
+```
diff --git a/bin/run b/bin/run
new file mode 100755
index 0000000..5aa0b9a
--- /dev/null
+++ b/bin/run
@@ -0,0 +1,17 @@
+#!/bin/bash
+set -eu
+
+if [ -z "${IMAGE:+x}" ]; then
+  IMAGE=ghcr.io/codewars/purescript:latest
+fi
+
+W=/workspace
+
+# Create container
+C=$(docker container create --rm -w $W $IMAGE pulp test)
+
+# Copy files from the examples directory
+docker container cp examples/${1:-passing}/. $C:$W
+
+# Run tests
+docker container start --attach $C
diff --git a/examples/passing/src/Example.purs b/examples/passing/src/Example.purs
new file mode 100644
index 0000000..a4bcca6
--- /dev/null
+++ b/examples/passing/src/Example.purs
@@ -0,0 +1,5 @@
+module Example where
+import Prelude
+
+add' :: Int -> Int -> Int
+add' a b = a + b
diff --git a/examples/passing/test/ExampleSpec.purs b/examples/passing/test/ExampleSpec.purs
new file mode 100644
index 0000000..79640c2
--- /dev/null
+++ b/examples/passing/test/ExampleSpec.purs
@@ -0,0 +1,15 @@
+module ExampleSpec where
+
+import Prelude
+import Example (add')
+
+import Test.Spec (Spec, describe, it)
+import Test.Spec.Assertions (shouldEqual)
+
+spec :: Spec Unit
+spec =
+  describe "Example" do
+    describe "add" do
+      it "returns sum" do
+        let sum = add' 1 1
+        sum `shouldEqual` 2
diff --git a/workspace/package-lock.json b/workspace/package-lock.json
new file mode 100644
index 0000000..068a749
--- /dev/null
+++ b/workspace/package-lock.json
@@ -0,0 +1,13 @@
+{
+  "name": "cw-purescript",
+  "version": "0.0.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "big-integer": {
+      "version": "1.6.41",
+      "resolved": "https://registry.npmjs.org/big-integer/-/big-integer-1.6.41.tgz",
+      "integrity": "sha512-d5AT9lMTYJ/ZE/4gzxb+5ttPcRWljVsvv7lF1w9KzkPhVUhBtHrjDo1J8swfZKepfLsliDhYa31zRYwcD0Yg9w=="
+    }
+  }
+}
diff --git a/workspace/package.json b/workspace/package.json
new file mode 100644
index 0000000..321ed1d
--- /dev/null
+++ b/workspace/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "cw-purescript",
+  "version": "0.0.1",
+  "description": "",
+  "dependencies": {
+    "big-integer": "^1.6.41"
+  }
+}
diff --git a/workspace/psc-package.json b/workspace/psc-package.json
new file mode 100644
index 0000000..817d4b1
--- /dev/null
+++ b/workspace/psc-package.json
@@ -0,0 +1,17 @@
+{
+  "name": "cw-purescript",
+  "set": "psc-0.12.2-20190119",
+  "source": "https://github.com/purescript/package-sets.git",
+  "depends": [
+    "prelude",
+    "console",
+    "debug",
+    "effect",
+    "bigints",
+    "rationals",
+    "profunctor-lenses",
+    "spec",
+    "spec-discovery",
+    "spec-quickcheck"
+  ]
+}
diff --git a/workspace/src/Main.purs b/workspace/src/Main.purs
new file mode 100644
index 0000000..971037a
--- /dev/null
+++ b/workspace/src/Main.purs
@@ -0,0 +1,9 @@
+module Main where
+
+import Prelude
+import Effect (Effect)
+import Effect.Console (log)
+
+main :: Effect Unit
+main = do
+  log "Hello World!"
diff --git a/workspace/src/Test/Spec/Reporter/Codewars.purs b/workspace/src/Test/Spec/Reporter/Codewars.purs
new file mode 100644
index 0000000..3b2a5bc
--- /dev/null
+++ b/workspace/src/Test/Spec/Reporter/Codewars.purs
@@ -0,0 +1,49 @@
+module Test.Spec.Reporter.Codewars (codewarsReporter) where
+
+import Prelude
+
+import Data.Maybe (Maybe(..))
+import Data.String
+  ( Pattern(Pattern)
+  , Replacement(Replacement)
+  , replaceAll
+  )
+import Effect.Console (log)
+
+import Test.Spec.Reporter.Base (defaultReporter)
+import Test.Spec.Runner (Reporter)
+import Test.Spec.Runner.Event as Event
+
+
+codewarsReporter :: Reporter
+codewarsReporter = defaultReporter {} update
+  where
+    update s = case _ of
+      Event.Start _ -> pure s
+      Event.End _ -> pure s
+      Event.Suite name -> s <$ log ("\n<DESCRIBE::>" <> name)
+      Event.SuiteEnd -> s <$ log "\n<COMPLETEDIN::>"
+
+      Event.Pending name -> s <$ do
+        log $ "\n<IT::>" <> name
+        log $ "\n<LOG::>Pending Test"
+        log $ "\n<COMPLETEDIN::>"
+
+      Event.Pass name _ ms -> s <$ do
+        log $ "\n<IT::>" <> name
+        log $ "\n<PASSED::>Test Passed"
+        log $ "\n<COMPLETEDIN::>" <> (show ms)
+
+      Event.Fail name msg mStack -> s <$ do
+        log $ "\n<IT::>" <> name
+        log $ "\n<FAILED::>Test Failed<:LF:>" <> (escapeLF msg)
+        case mStack of
+          Nothing -> pure unit
+          Just k  -> log $ "\n<LOG::-Stack Trace>" <> (escapeLF k)
+        log $ "\n<COMPLETEDIN::>"
+
+      _ -> pure s
+
+
+escapeLF :: String -> String
+escapeLF = replaceAll (Pattern "\n") (Replacement "<:LF:>")
diff --git a/workspace/test/Example/ExampleSpec.purs b/workspace/test/Example/ExampleSpec.purs
new file mode 100644
index 0000000..01c3e59
--- /dev/null
+++ b/workspace/test/Example/ExampleSpec.purs
@@ -0,0 +1,36 @@
+module Example.ExampleSpec where
+
+import Prelude
+import Effect.Aff (delay)
+import Data.Time.Duration (Milliseconds(..))
+
+import Test.QuickCheck ((===), (/==))
+import Test.Spec (Spec, describe, it)
+import Test.Spec.Assertions (shouldEqual)
+import Test.Spec.QuickCheck (quickCheck)
+
+-- example from README plus basic sanity checks
+spec :: Spec Unit
+spec =
+  describe "purescript-spec" do
+    describe "Attributes" do
+      it "awesome" do
+        let isAwesome = true
+        isAwesome `shouldEqual` true
+
+    describe "Features" do
+      it "runs in NodeJS" $ pure unit
+      it "runs in the browser" $ pure unit
+      it "supports async specs" do
+        res <- delay (Milliseconds 100.0) *> pure "Alligator"
+        res `shouldEqual` "Alligator"
+
+    describe "QuickCheck" do
+      it "works" $
+        quickCheck \n -> (n * 2 / 2) === n
+      it "works again" $
+        quickCheck \n -> ((n + 1) * 2) /== n
+
+    describe "Failure example" do
+      it "should fail" do
+        1 `shouldEqual` 2
diff --git a/workspace/test/Main.purs b/workspace/test/Main.purs
new file mode 100644
index 0000000..d0c6e48
--- /dev/null
+++ b/workspace/test/Main.purs
@@ -0,0 +1,15 @@
+module Test.Main where
+
+import Prelude
+import Data.Maybe (Maybe(..))
+import Effect (Effect)
+
+import Test.Spec.Discovery (discover)
+import Test.Spec.Runner (defaultConfig, run')
+
+import Test.Spec.Reporter.Codewars (codewarsReporter)
+
+main :: Effect Unit
+main = discover ".+Spec" >>= run' config [codewarsReporter]
+  where
+    config = defaultConfig { timeout = Just 12000 }