diff --git a/.gitignore b/.gitignore
index 56cc973b..2fd2749e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,7 @@ node_modules/
 
 # prisma
 **/prisma/generated
+/.temp-for-migrations.db
 
 # production
 /build
diff --git a/doc/DEVELOPMENT.md b/doc/DEVELOPMENT.md
index 825837e5..8b3297b7 100644
--- a/doc/DEVELOPMENT.md
+++ b/doc/DEVELOPMENT.md
@@ -96,6 +96,16 @@ This is because containers run in Linux VMs,
 where virtual filesystems such as virtiofs cause degraded disk IO performance
 and might not support overlayfs.
 
+## The database schema
+
+The database schema lives in `src/prisma/schema.prisma`.
+If it is changed, you'll need to use Prisma to create migrations using a temporary database.
+
+```sh
+DATABASE_URL="file:$PWD/.temp-for-migrations.db" npx prisma migrate dev
+rm ./.temp-for-migrations.db
+```
+
 ## Debugging
 
 In dev mode (`make dev`),