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Seven small Redis-style scripts now built into a server, replacing custom Lua

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A developer who maintained a folder of tiny Lua scripts for a Redis-style store decided to check which of them were really needed. Many turned out to be commands nobody had yet built into a server. The post lists the ones that were added to the Ruvio server in its 0.4.0 release. Each example pairs a command with its exact reply, such as atomic transfers between balances, guarded stock decrements, and capped counters. The commands cover conditional writes, per-window rate limits, and reply formats that let clients read retry delays directly from the server.

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