Plan9

[rminnich]

Describe your changes

Add plan 9 support. Tested in Plan. Depends on my PR to x/term.

Related issue/discussion:

Checklist before requesting a review

• I have read CONTRIBUTING.md
• I have performed a self-review of my code

If this is a feature

• I have created a discussion
• A project maintainer has approved this feature request. Link to comment:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.99%. Comparing base (e24d6b2) to head (2a61bcc).
Report is 23 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1445      +/-   ##
==========================================
- Coverage   70.10%   69.99%   -0.12%     
==========================================
  Files          17       17              
  Lines        1726     1733       +7     
==========================================
+ Hits         1210     1213       +3     
- Misses        469      472       +3     
- Partials       47       48       +1     

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[andreynering]

Hi @rminnich, thanks again for your PR!

Just as charmbracelet/x#494, I added a CI action to ensure it build on Plan9. Of course, it's failing temporarily.

Feel free to rewrite the Git history if you'd like.