The set_user PostgreSQL extension allows switching users and optional privilege escalation with enhanced logging and control. It provides an additional layer of logging and control when unprivileged users must escalate themselves to superuser or object owner roles in order to perform needed maintenance tasks.

postgresql-unit implements a PostgreSQL datatype for SI units, plus byte. The base units can be combined to named and unnamed derived units using operators defined in the PostgreSQL type system. SI prefixes are used for input and output, and quantities can be converted to arbitrary scale.

This Ada library generates various bar or QR codes, on different output formats such as PDF, SVG or bitmaps.

Alligator is a convergent RSS feed aggregator. It requires manual entering of the URLs

Synchronization of contact data in Lomiri is controlled by Buteo (the synchronization framework used in Ubuntu Touch and SailfishOS). Synchronization with a variety of data sources is supported through a number of data-source-specific synchronization plugins. Each plugin is independent, although many of them share significant amounts of code to ease maintenance.

cashbox memorises the cost of articles and calculates the total price and change. It is intended for small clubs on a celebration, where members are not experienced in memorizing prices and doing mental arithmetic.