trying https://github.com/zerotier/ZeroTierOne/archive/master.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0   0     0   0     0     0     0  --:--:-- --:--:-- --:--:--     0
100 10634k   0 10634k   0     0  5323k     0  --:--:--  0:00:01 --:--:-- 12149k
unpacking source archive /build/download.tar.gz