Separate command and query

backend/spec/pool.md

@@ -0,0 +1,14 @@
+# `pub async fn create_pool() -> Result<SqlitePool>`
+
+Creates and returns a sqlite connection pool.
+
+Notes:
+
+- Database table names are singular: `activity`, `tenant`, `relay`
+
+Steps:
+
+- Reads `DATABASE_URL` from environment
+- Ensures that any directories referred to in `DATABASE_URL` exist
+- Initializes the sqlx pool
+- Runs migrations found in the `migrations` directory