The Rails application that powers OpenStreetMap
Repositories
mvanhorn repositories
OpenTelemetry auto-instrumentation and instrumentation libraries for Java
Create your own Lambda Layer in each OTel language using this starter code. Add the Lambda Layer to your Lambda Function to get tracing with OpenTelemetry.
OpenTelemetry Python API and SDK
OpenTelemetry instrumentation for Python modules
The OpenTelemetry website and documentation
Burning through your subscriptions too fast? Paying for stuff you never use? Stop guessing. OpenUsage is free and open source.
OpenViking Memory Plugins for Claude Code & more coming
OpenWiki is a CLI that writes and maintains agent documentation for your codebase.
BPMN-Process automation for everyone
Kubernetes operator for Victoria Metrics
Kubernetes operator to manage installation, updation and uninstallation of tektoncd projects (pipeline, …)
OpsKat — Infrastructure Ops, Reimagined with AI
Lightweight Python tool to detect performance regressions and compare execution traces with call graph visualization.
Orca is the next-gen IDE for building with coding agents
Doctrine Object Relational Mapper (ORM)
A suite of tools to automate software compliance checks.
The home of moss (system state and package manager) and boulder (moss-format build tool)
Open source system for states to meet HR1 Medicaid community engagement requirements. Tracks work/education/volunteer activities, manages exemptions, and generates compliance reports. Built for integration with Medicaid eligibility systems and adaptable to state-specific rules.
open-source application that can copy OTP and codes from notifications automatically for you