French tax and benefit system for OpenFisca

OpenFisca core engine. See other repositories for countries-specific code & data.

A user-friendly web-based tool for Rules as Code.

define, compose, and evaluate your business rules in Elixir

Start modelling the tax and benefit system of your country in a few minutes.

L4 - Rules-as-code - is an open-source functional specification language for business rules, legal contracts, and legislation/regulation, with a CNL syntax for isomorphism.

bamboo firewall, firewall, iptables, firewall distributed, host base firewall

Explore legislation formulas and parameters.

REST server + UI for Rulette

bamboo firewall, firewall, iptables, firewall distributed, host base firewall

A language that means business.

Nomos — a programming language for legal reasoning. Typed rules with jurisdiction and validity dates, LLM-powered fact extraction, defeasible logic, proof trees that cite statutes and cases. Apache-2.0. Experimental.

Modèle Publicodes pour le calcul des aides vélo en France

L4 - Rules as Code - Legal language syntax highlighting for Highlight.js

GovSCH is an Open-Source Schema for Authoring Cybersecurity & AI Governance Documents

A simple debt contract written in L4.

Empirical study + executable rule library: 188 DIFC/ADGM/SICC judgments scored against a 6+2 primitive framework, 12 Catala rule modules (16 scopes), 7 case traces reproducing court arithmetic, bootstrap-CI tribunal means, 1930 property-test invariants. Reproducible via Docker.

OpenFisca package encoding NSW water management rules as code — metering compliance, controlled activity approvals, harvestable rights

Starter template for the Rules as Code Hackathon - model pension lump-sum decisions with transparency and explainability

Comparaison de Catala, Publicodes et OpenFisca