Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)
ZUGFeRD/mustangproject has 492 GitHub stars. It gained 0 stars over 1 recorded day in the last 30 days (snapshots through Nov 9, 2026).
It currently ranks #9631 daily, #5185 weekly, #6232 monthly by momentum on Trending Repos; its best-ever rank is #781.
Trending Repos first recorded it on May 16, 2026.
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