Read it as "with an eye towards Unix", i.e. targetted at Unix users.
Actually, I'd say it's targetting Unix users who have to use Windows :-) I initially installed xonsh on my work laptop so I could have a bash-like shell in Windows.
GAZING, it's like gassing but said with an easter european slang, try to read the word and say it slowly "gazing". I am "gazing".