lix/doc/manual/rl-next/eval-system.md
jade 748d8310fa Fix the pages in the manual for Lix
This doesn't comprehensively fix everything outdated in the manual, or
make the manual greatly better, but it does note down where at least
jade noticed it was wrong, and it does fix all the instances of
referencing Nix to conform to the style guide to the best of our
ability.

A lot of things have been commented out for being wrong, and there are
three types of FIXME introduced:

- FIXME(Lix): generically Lix needs to fix it
- FIXME(Qyriad): re #215
- FIXME(meson): docs got outdated by meson changes and need rewriting

I did fix a bunch of it that I could, but there could certainly be
mistakes and this is definitely just an incremental improvement.

Fixes: #266
Change-Id: I5993c4603d7f026a887089fce77db08394362135
2024-05-05 16:11:01 -07:00

570 B

synopsis prs
Add new `eval-system` setting 4093

Add a new eval-system option. Unlike system, it just overrides the value of builtins.currentSystem. This is more useful than overriding system, because you can build these derivations on remote builders which can work on the given system. In contrast, system also effects scheduling which will cause Lix to build those derivations locally even if that doesn't make sense.

eval-system only takes effect if it is non-empty. If empty (the default) system is used as before, so there is no breakage.