DoubleEntry

Judgement

What it is

Building block

What it does

A Ruby gem from Envato that adds double-entry accounts and transfers with balance locking to Rails apps on MySQL or PostgreSQL.

Adopt it when

Your Rails app moves money between users or accounts and needs reliable balances.

Watch out

Activity is low, with the last push in January 2026.

Ready for

Production-ready

Runs as

Library

Built with

Ruby, Rails, PostgreSQL and MySQL

How established

Established: started 12 years ago, latest release v2.0.2.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: DoubleEntry → Ruby → GCC → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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