All Side Hustle Ideas
Software and apps

Open source Ruby gem with paid pro version

Maintains a free open source gem for running test suites in parallel and sells a paid pro version of it. Revenue comes from pro subscriptions.

At a glance
Estimated by a classifier that read the source. The bar shows how sure it was.
Category
Software and apps
89% sure
x
Earns from
Subscriptions
95% sure
x
Startup cost (estimate)
Under $100Low confidence
49% sure
x
Time it takes (estimate)
Part-timeLow confidence
52% sure
x
Where
Online
99% sure
x
Coding
Needs coding
98% sure
x
Source
Hacker NewsComment by ArturT in “Ask HN: What are your passive income sources?”, October 26, 2016

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