You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

nikgapps
1.86

This version was deleted from PyPI around 2024-04-19. Installing fails with:
$ pip3 install nikgapps==1.86 ERROR: Could not find a version that satisfies the requirement nikgapps==1.86
View other deleted versions of nikgapps

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2024-04-18/ \ nikgapps==1.86
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Or, download files manually

And install manually via pip:
NikGapps-1.86-py3-none-any.whl (40.0MB)
NikGapps-1.86.tar.gz (39.9MB)