A basic script, written in Haskell, to grab public SSH keys from Github.
This is a pretty standard package.
cabal sandbox init
cabal install
cabal build
cabal run tombert
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDTtpWONqZwwyNOJ6chO9UNqDQT6Uni1nqNhb9AEG6iyR6flyUIbbOgyV8Y3Rg6qdxffYfS25ypIlGUKU0DyDYxjloAWNHTXz68aIw1pk+oXaEcoV1Nymm74uPvHDmgwhnEFT9G53vk22hwIMohmL73rgBYTjEuk7ju8opKbo3NKzld97X6CodchO3hjQCTyLUKLrEIbGXqont0tHhk2WTUpRaSTp2JiVXrNHQbezDBH4YSqxSy5n0HJB7nWfa3XkEusmDTMEMbn3DCYiVcVCUoZVsptD5wafxiZT5FRggtFtWhUIwJ+YSyydoSmwKUdOkTZ6Qr5UzlbW+1DOURnCMx
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCnKbfYGsyDL1+FAuVxGbG++ImuO90e8dbnyDAaPsqFY7vrvyK9JP9e3HynsvhZYkbOdxfwGfM1QbuvNzqyieqVEO+2OqkxdI9syXXYhA8nPdUYdYA8juDDQPYeUEhfH14IWAxfjGHzooQM2imFvuZiPmzldtbifZqev5qweStUCJX0OP/RQGfAfKa6hpQmTPqZEix2cAJV7JHkRwhX/fmR8ejADe1i85TNJFW3ZpKowIuV4+Qq+K6TD2gw280UIxwFRSm0vjRAoPZWhsp+2lFe9x4s9ra0YyRWb4vOhTlLk/3B5pOpsx2xjCgunNCBOkQZr6s3+VdvLGNSaCYweGsd
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDTJvV0RvKzywlSe4uySfZz4ol8Vf9N5OgFaMp+VRdCUte6+GnUZ3KZONjHJP/Mv/QTS4HuzapO9cdH9dqico6uQ1sCxCS8pPwp9KWQKreAgG/6w0ShFHDUjMkrGH+omnusy0DDH53ecA/1JxKMucYjQu4ZrzTopyRu6bPLZ93A9LJNv81eyj9hR+IuFnUme40mSYx7C3MbSfoFQm4EOxajf9IwsBt6eCkDBeqzZe6cqmn/ZJfJtZnyL2obLKrTs4cDKE5Add+vl0fOai8d3KdaBJN8q9dRCtU/H2SWE9WVlIUwJ7/h5Xn8TfniU1E6gH7GiOCgeB5fy9rojYsl2s1t
You can specify as many usernames as you want:
cabal run tombert torvalds
Not sure this will be useful for anyone, but it was handy for me.