Prepare for FOSS compliance#247

Open

ekaf wants to merge 7 commits intonltk:gh-pagesfrom

ekaf:osi-listings

Commits on Jun 27, 2025

List free and nonfree packages according to OSI
ekaf
committed

Commits on Jun 28, 2025

Add notes about the FSF definition of free
ekaf
committed

Commits on Aug 3, 2025

Commits on Oct 20, 2025