Alchemy adds Railway sandbox domains, sizing, forks and checkpoints in merged PR
samgoodwin89 · x · 2026-09-17
sam-goodwin merged PR #1661 in alchemy-run/alchemy, extending Railway sandboxes with public HTTPS domains, CPU/memory sizing, disk forks, and managed checkpoints. Sandboxes restore from checkpoint templates, get replaced when immutable options change, and handle running/destroyed states plus foreign-capture protection. Bonus anecdote: the author almost prompted an agent to add Railway Sandboxes support, only to find it was already in the schema.
Related event: Railway Launches Sandboxes for Agents, Alchemy Adds Integration(2 posts)→
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