Igropyr: A Fault-Tolerant Web Server Built in Pure Chez Scheme

A Erlang style pure Scheme Webserver and further

I built Igropyr, a web server in pure Chez Scheme that embraces the Erlang philosophy of letting crashes heal themselves. It features hot code swapping for zero-downtime updates, structured fault protocols that keep connections alive, and green processes that turn multi-request dialogues into single, stateful conversations. The system ensures that even a stuck worker never freezes the server, providing robust, self-healing performance out of the box.

Write the happy path. The supervisor owns the sad one.
  1. guenchi

    Let It Crash, Hot code swapping, The remote retry ring, web programming with continuation, S-expr RPC (with goeteia.dev)

  2. mullr

    Another 2 day old vibe coded project. The premise is great, but it’s pretty apparent that no thought was put into it. They couldn’t even be bothered to write their own text for the web site.

  3. edfsadfer

    There is also Swish for Chez Scheme https://github.com/becls/swish. About 10 years old now

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2026-07-12