Dia is dead, alternatives
Used Apps/Dia - GNOME Wiki! all my life and love it, but
News! 2011-Dec-18: Version 0.97.2 has been released.
Depends on python 2.7 and is very problematic to install now. I’ll miss it.
I hear https://draw.io is a good alternative.
I’ll add a list of options here next time I need this.
(But for older dia files I’ll have to edit maybe later: it could be installed on a Windows machine and export a broken .SVG which I could then edit in Inkscape.)
Nel mezzo del deserto posso dire tutto quello che voglio.