# \#c

**URL:** https://forum.clockworkpi.com/tag/c/76.md

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## [Mellivora OS for PicoCalc](https://forum.clockworkpi.com/t/mellivora-os-for-picocalc/22154)

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**Author:** [@honeybadger](https://forum.clockworkpi.com/u/honeybadger)\
**Replies:** 3\
**Last updated:** [April 20, 2026, 12:00pm UTC](https://forum.clockworkpi.com/t/mellivora-os-for-picocalc/22154 "2026-04-20T12:00:10Z")

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I developed my own OS for 80486 machines and ported it PicoCalc … give it a look … (Note: corrected some critical bugs - now functional)

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## [\[EOL\] Astralixi Lyra OS Megathread](https://forum.clockworkpi.com/t/eol-astralixi-lyra-os-megathread/18027)

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**Author:** [@Astrox](https://forum.clockworkpi.com/u/Astrox)\
**Replies:** 510\
**Last updated:** [December 4, 2025, 3:15pm UTC](https://forum.clockworkpi.com/t/eol-astralixi-lyra-os-megathread/18027 "2025-12-04T15:15:52Z")

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This thread is outdated. A newer version of Astralixi is available, that is targetted towards space enthusiasts. END OF LIFE

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## [Is there an simple example code of a program using c / c++ and OpenGL ES?](https://forum.clockworkpi.com/t/is-there-an-simple-example-code-of-a-program-using-c-c-and-opengl-es/1211)

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**Author:** [@AC\_YOUCH](https://forum.clockworkpi.com/u/AC_YOUCH)\
**Replies:** 9\
**Last updated:** [August 5, 2018, 8:25pm UTC](https://forum.clockworkpi.com/t/is-there-an-simple-example-code-of-a-program-using-c-c-and-opengl-es/1211 "2018-08-05T20:25:20Z")

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Is there an simple example code of a program using c / c++ and OpenGL ES? I compiled the program code using glfw. However, it did not work well in gameshell’s environment.