Otto

Define Ruby Rack apps in plain text, with privacy by default and opt-in security features.

Pluginfreeglobal

Otto is a free, open-source way to define Ruby 3 Rack apps in plain text across three simple files, with privacy-by-default and opt-in security features. It's aimed at Ruby developers building simple Rack apps who don't want the overhead of a full-featured framework.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Otto - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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