Klirr

Judgement

What it is

Developer tool

What it does

A command-line tool that generates monthly invoices for consulting services and expenses from a config file, rendered with Typst and with currency conversion.

Adopt it when

A contractor who bills the same client each month wants invoices generated from the terminal.

Watch out

Young and single-maintainer, with no push since June 2026.

Ready for

Experimental

Runs as

Command line

Built with

Rust and Typst

How established

Young: started 17 months ago, latest release v0.2.15.

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: Klirr → Rust → runs on a microchip

How compilers were built, back to punched paper tape

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