Oldest Scheme Implementations

This page summarizes the projects mentioned and recommended in the original post on /r/scheme

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  • STk

    STk is the ancestor of STklos (https://stklos.net) This repository contains fixes to allow the compilation of 4.0.1 on modern versions of GCC (by egallesio)

    STklos was indeed born in 2001, but it was the successor of Stk, which is much older. Its first release was in 1993. As far as I know, STkos did use code from STk, so I'm not sure one couldn't say it was born in 1993, as "STk".

  • STklos

    STklos Scheme

    STklos was indeed born in 2001, but it was the successor of Stk, which is much older. Its first release was in 1993. As far as I know, STkos did use code from STk, so I'm not sure one couldn't say it was born in 1993, as "STk".

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  • ypsilon

    R7RS/R6RS Scheme Implementation

    Oh - it seems that Ypsilon is being actively developed again!

  • sagittarius-scheme

    A manual (beh...) clone from bitbucket to use hosted CI service which only support GitHub

    Since you're listing Gerbil which is from 2016, maybe also list Sagittarius, which dates back to at least 2011

  • Kawa

    Kawa is quite relevant, and it seems that the project started in 1996. Still actively maintained.

  • husk-scheme

    A full implementation of the Scheme programming language for the Haskell Platform.

    Yes. One more -- the first (only?) Scheme written in Haskell, Husk, started in 2010 (which is the data of the commit for the first entry, "Initial version", in the Changelog)

  • cyclone

    :cyclone: A brand-new compiler that allows practical application development using R7RS Scheme. We provide modern features and a stable system capable of generating fast native binaries.

    And its successor, Cyclone, began in 2014, and is actively developed.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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