

Honestly, Sailfish is only worth it if you have a license, as there are very few native apps and the android compatibility layer is the only way to have a proper daily driver phone. I did try it with the Sony Xperia X II a 1-2 years ago, and honestly, it was still very buggy.
Apparently, Electronic Arts out of all companies has made a similar open source tool 4 years ago: https://github.com/electronicarts/Tunable-Colorblindness-Solution