If someone is impatient and refreshes the page:

https://staging.githubunwrapped.com/ -Error: MongoServerError: E11000 duplicate key error collection: unwrapped2023-testing.renders index: username_1_theme_1 dup key: { username: "n3xt191", theme: "blue" }
at InsertOneOperation.execute (/opt/render/project/src/node_modules/mongodb/lib/operations/insert.js:48:19)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async executeOperationAsync (/opt/render/project/src/node_modules/mongodb/lib/operations/execute_operation.js:106:16)
at async saveRender (file:///opt/render/project/src/dist/server/db.js:68:5)
at async renderOrGetProgress (file:///opt/render/project/src/dist/server/render.js:115:5)
at async renderEndPoint (file:///opt/render/project/src/dist/server/render.js:126:17)
at async file:///opt/render/project/src/dist/server/server.js:22:13