Replace apt-transport-tor with APT 1.3's Tor or SOCKS5h support
apt (1.3~rc1) unstable; urgency=medium * Summary: [...] socks5h (and tor) support [...] [...] * http: auto-configure for local Tor proxy if called as 'tor'
It seems that we could simply use
tor:// instead of
everywhere, and drop apt-transport-tor. Alternatively, and probably
nicer: we could also just use
http:// and use APT 1.3’s socks5h
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