# Linux · Tech watch [Canonical source]() An operating system for servers, containers and development environments. ## [Kiri: a Docker-compatible container runtime for three OSes]() Kiri replaces Docker Desktop and OrbStack with a lightweight container runtime for macOS, Windows, and Linux, compatible with the Docker CLI, Compose, and buildx. The repository also describes a native UI and support for Kubernetes clusters and Linux machines. Its architecture uses a Linux VM and a Rust agent that starts containers through `clone3`, without runc, a shim, or dockerd. The project publishes startup-time benchmarks against Docker Desktop and OrbStack, along with instructions for reproducing them. 2026-11-06 · [Markdown]() · [Original resource]() ## [Linux troubleshooting labs for DevOps and SRE practice]() SadServers offers hands-on Linux troubleshooting scenarios, with a free tier and plans that unlock more than 125 exercises. Higher tiers add features such as direct SSH access and a command-line interface, while business plans also support technical interviews and team training. 2026-08-29 · [Markdown]() · [Original resource]() ## [Below: record and replay Linux resource usage]() Below records process, cgroup and system resource data for inspection over time. Live, record and replay modes help investigate an incident after it occurs. 2025-11-13 · [Markdown]() · [Original resource]() ## [OrbStack: run Docker containers and Linux machines on macOS]() OrbStack provides a macOS environment for Docker containers and Linux machines. It focuses on CLI integration, file sharing and SSH access for local development. 2024-10-10 · [Markdown]() · [Original resource]()