diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..d37f594
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,8 @@
+### Setup ###
+REGISTRY_URL=''
+
+### Postgres ###
+POSTGRES_USER='postgres'
+POSTGRES_PASSWORD='postgres'
+POSTGRES_DB='postgres'
+POSTGRES_PORT='5432'
diff --git a/Justfile b/Justfile
new file mode 100644
index 0000000..e013b37
--- /dev/null
+++ b/Justfile
@@ -0,0 +1,57 @@
+set shell := ["bash", "-euo", "pipefail", "-c"]
+set dotenv-load := true
+
+VARIANT      := env("VARIANT", "postgres")
+REGISTRY_URL := env("REGISTRY_URL", "")
+VERSION      := env("VERSION", "latest")
+
+_default:
+  @echo "Default env variables:"
+  @echo "    VARIANT: {{VARIANT}}"
+  @echo "    REGISTRY_URL: {{REGISTRY_URL}}"
+  @echo "    VERSION: {{VERSION}}"
+  @just --list
+
+### Build & Publish ###
+
+# Build image locally
+build db=VARIANT:
+  #!/usr/bin/env bash
+  PREFIX=${REGISTRY_URL:+${REGISTRY_URL}/}
+  IMAGE="{{db}}:{{VERSION}}"
+
+  echo "docker build -f {{db}}/Dockerfile -t ${PREFIX}${IMAGE} ."
+  docker build -f {{db}}/Dockerfile -t ${PREFIX}${IMAGE} .
+
+# Build and push image to registry - no echo for security
+publish db=VARIANT:
+  #!/usr/bin/env bash
+  PREFIX=${REGISTRY_URL:+${REGISTRY_URL}/}
+  IMAGE="{{db}}:{{VERSION}}"
+
+  just build {{db}}
+  docker push ${PREFIX}${IMAGE}
+
+### Tests ###
+
+# Start a database and wait until it's healthy
+db-up db=VARIANT:
+  docker compose -f {{db}}/compose.yml up -d --wait
+
+# Stop a database and remove volumes
+db-down db=VARIANT:
+  docker compose -f {{db}}/compose.yml down -v
+
+# Run tests against a database variant
+test db=VARIANT:
+  @case "{{db}}" in \
+    postgres)  just _test-postgres ;; \
+    *)         echo "Unknown database: {{db}}" >&2; exit 1 ;; \
+  esac
+
+# Run tests against a Postgres database
+_test-postgres:
+  #!/usr/bin/env bash
+  trap 'just db-down postgres' EXIT
+  just db-up postgres
+  docker compose -f postgres/compose.yml exec postgres pg_isready -U ${POSTGRES_USER}
diff --git a/mise.toml b/mise.toml
new file mode 100644
index 0000000..6f0f06b
--- /dev/null
+++ b/mise.toml
@@ -0,0 +1,2 @@
+[tools]
+just = "latest"