For those interested, here are the licenses each project is available under: (courtesy Evairfairy)

Hangfire --------

LGPL3 https://tldrlegal.com/license/gnu-lesser-general-public-lice...

Postal ------

MIT https://tldrlegal.com/license/mit-license#summary

Formo -----

MIT https://tldrlegal.com/license/mit-license#summary

CsvHelper ---------

MS-PL https://tldrlegal.com/license/microsoft-public-license-(ms-p... Apache https://tldrlegal.com/license/apache-license-2.0-(apache-2.0...

Topshelf --------

Apache https://tldrlegal.com/license/apache-license-2.0-(apache-2.0...