7 tools
Caddy project (sponsored by ZeroSSL) · Reverse proxies & web servers
Go web server and reverse proxy that obtains and renews TLS certificates automatically and is configured with a short Caddyfile or a JSON API
Cloud Native Computing Foundation · Containers & virtualization
Open-source system for scheduling, scaling and operating containerized workloads across a cluster of machines
Langfuse (part of ClickHouse, Inc. since January 2026) · Prompting, evaluation & observability
Open-source LLM observability and evaluation platform: tracing, LLM-as-judge and human evals, prompt management, datasets and cost dashboards, self-hostable or as Langfuse Cloud
Internet Security Research Group (ISRG) · DNS & domains
Nonprofit certificate authority that issues free, automatically renewable TLS certificates through the ACME protocol
Keymetrics (Unitech) · Infrastructure & provisioning
Production process manager for Node.js and other long-running programs with cluster mode, log handling, restart policies and boot-time startup scripts
restic project (Alexander Neumann and contributors) · Backup & recovery
Encrypted, deduplicating backup program written in Go that stores snapshots in local, SFTP, S3-compatible and many cloud backends
WireGuard project (Jason A. Donenfeld) · Tunneling & remote access
Minimal, high-speed VPN protocol and implementation built on modern cryptography, included in the Linux kernel and available on macOS, iOS, Windows, Android and BSD
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