I had to give @BoxyBSD a try and it is really amazing! Just got an #illumos box running there for free and it works without any issues. So, not only #BSD based systems, but also #opensolaris is supported at @gyptazy's amazing service. Thank you very much for this service. Btw, you could add real home directories for the created user ;)
Maybe more people will have a look at #solaris like #openindiana or #tribblix or #omnios.