FreeだとRAM 256MBですが、Swiftコンパイラ動きますか？ https://render.com/pricing/#services (edited)

Pricing | Render · Cloud Hosting for Developers

Render is a unified cloud to build and run all your apps and websites with free TLS certificates, global CDN, private networks and auto deploys from Git.

9:03 AM

Linkerが頑張ったりしなければ問題ないのかな。