Machines API lets you spin up ephemeral containers programmatically — great for running user-submitted code safely
+127
The free allowance is enough to run two small apps indefinitely, which is great for hobby projects and side businesses+112
Cons
The CLI-first experience has a steep learning curve compared to Vercel or Railway — the mental model of machines and apps takes time to internalize+141
Networking between services, volumes, and private networking can behave unexpectedly and debugging requires deep platform knowledge+124
Documentation quality is inconsistent — some features are covered well but others have sparse or outdated guides+97
Cold starts when a machine scales from zero are longer than serverless alternatives at around 2-5 seconds+82
