docs: add install instructions for arch

[FFY00]

Signed-off-by: Filipe Laíns lains@archlinux.org

[FFY00]

Yosys will always be at the latest version since we follow the upstream closely. Arch is a rolling distribution so there are no installations with repo access to an older yosys.

As a packager I'd like to advise to install nmigen via the system package manager, this is the only proper way to install it system-wide. Does it make sense to do it here?

[whitequark]

Yosys will always be at the latest version since we follow the upstream closely. Arch is a rolling distribution so there are no installation with repo access to an older yosys.

Great!

As a packager I'd like to advise to install nmigen via the system package manager, this is the only proper way to install it system-wide. Does it make sense to do it here?

Depends. Would Arch provide the latest release or the latest master?

[FFY00]

Latest release, arch packages stable software.

[whitequark]

Sure. Then you can add the Arch-specific instructions to the Latest release section, also with :altname: linux.

[whitequark]

Note that, in the future (as in, when I figure out the least footgun-y path towards it) the primary mode of using nMigen would be through per-project virtualenvs. Once that happens, these installation instructions would be primarily targeted at developers who a are just trying it out and don't want to bother with relatively heavyweight project management yet.

[codecov]

Codecov Report

Merging #433 into master will not change coverage.
The diff coverage is n/a.

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  Hits         4984     4984           
  Misses        935      935           
  Partials      180      180           

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[whitequark]

Thanks!