diff --git a/knexfile.ts b/knexfile.ts
index d3b638c..45e907c 100644
--- a/knexfile.ts
+++ b/knexfile.ts
@@ -1,7 +1,15 @@
 import type { Knex } from "knex"
 require("dotenv").config()
 
-const config: Knex.Config = {
+// used for preview / if DATABASE_URL not set
+const SQLITE_CONFIG: Knex.Config = {
+  client: "sqlite3",
+  connection: {
+    filename: ":memory:",
+  },
+}
+
+const PG_CONFIG = {
   client: "postgresql",
   connection: process.env.DATABASE_URL,
   migrations: {
@@ -9,4 +17,6 @@ const config: Knex.Config = {
   },
 }
 
+const config: Knex.Config = process.env.DATABASE_URL ? PG_CONFIG : SQLITE_CONFIG
+
 export default config
diff --git a/src/knex/db.ts b/src/knex/db.ts
index ffb319a..dd867d3 100644
--- a/src/knex/db.ts
+++ b/src/knex/db.ts
@@ -1,18 +1,8 @@
-import type { Knex } from "knex"
 import knex from "knex"
 import config from "../../knexfile"
 
-// used for preview / if DATABASE_URL not set
-const DEFAULT_CONFIG: Knex.Config = {
-  client: "sqlite3",
-  connection: {
-    filename: ":memory:",
-  },
-}
-
 const newDb = () => {
-  const cfg = process.env.DATABASE_URL ? config : DEFAULT_CONFIG
-  return knex(cfg)
+  return knex(config)
 }
 
 export const db = newDb()