Open Source Ruby Database Software for Mac

Grafana OSS is a leading open-source visualization and observability platform that lets you query, visualize, alert on, and explore your data—regardless of where it’s stored. With support for 100+ data source plugins (such as Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, OTel, and more), you can unify metrics, logs, traces, and other observability signals in one place. Grafana OSS empowers you to build dynamic, reusable dashboards with rich visualizations, template variables, interactive filtering, and cross-panel linking. Its Explore mode enables ad-hoc queries and side-by-side comparisons of time ranges, queries, and data sources. Grafana also includes built-in alerting, allowing you to define threshold-based rules and send notifications to external systems (e.g. Slack, PagerDuty, OpsGenie). Backed by a strong community (https://grafana.com/community/) and open governance, Grafana OSS is free to use, modify, and deploy under the AGPL-3.0 license.

DataVision is a reporting tool similar to Crystal Reports. DV supports many data sources (JDBC, files) and many output formats (HTML, XML, PDF, LaTeX, Excel, delimited files, DocBook). DV includes a GUI editor. DV is embeddable. Reports are XML-based.

Law Leecher is a multi-threaded web crawling tool which extracts laws from the EU law database PreLex (http://ec.europa.eu/prelex/). It's written in Ruby.

A software for logging flight movements on small airfields or glider sites and automatically generating statistics and log books.

Thetis is the world strongest Groupware/CMS based on Ruby on Rails. It goes beyond just a groupware to be an information-sharing web platform integrating know-hows and ideas in the organization, with highly sophisticated functional UI by Web2.0/Ajax.