Merge pull request #254741 from asymmetric/doc-support-tiers-redux

doc: minimal documentation of supported platforms
NixOS · Oct 2, 2023 · 79c21ab · 79c21ab
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diff --git a/doc/using-nixpkgs.md b/doc/using-nixpkgs.md
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 # Using Nixpkgs {#part-using}
 
 ```{=include=} chapters
+using/platform-support.chapter.md
 using/configuration.chapter.md
 using/overlays.chapter.md
 using/overrides.chapter.md

diff --git a/doc/using/platform-support.chapter.md b/doc/using/platform-support.chapter.md
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+# Platform Support {#chap-platform-support}
+
+Packages receive varying degrees of support, both in terms of maintainer attention and available computation resources for continuous integration (CI).
+
+Below is the list of the best supported platforms:
+
+- `x86_64-linux`: Highest level of support.
+- `aarch64-linux`: Well supported, with most packages building successfully in CI.
+- `aarch64-darwin`: Receives better support than `x86_64-darwin`.
+- `x86_64-darwin`: Receives some support.
+
+There are many other platforms with varying levels of support.
+The provisional platform list in [Appendix A] of [RFC046], while not up to date, can be used as guidance.
+
+A more formal definition of the platform support tiers is provided in [RFC046], but has not been fully implemented yet.
+
+[RFC046]: https://github.com/NixOS/rfcs/blob/master/rfcs/0046-platform-support-tiers.md
+[Appendix A]: https://github.com/NixOS/rfcs/blob/master/rfcs/0046-platform-support-tiers.md#appendix-a-non-normative-description-of-platforms-in-november-2019