copy keybase binary, setup tmp homedir by default if oneshot mode.

[joshblum]

there is a lot of confusion getting a bot up and running if logged in as a different user. it would be nice if the library hid these details as the js lib does.

[finnkauski]

Would a docker container for your bot be more suitable. Given people would have to host one somewhere anyway?

[nathanmsmith]

I think the use of docker shouldn’t be something that the bot requires. We should support both docker and non-docker installs.

[finnkauski]

Ye of-course! Just a good to have.