smolvm - portable lightweight VMs in a single file
Open-source CLI for sub-second VMs on macOS (Hypervisor.framework) and Linux (KVM) via libkrun. Sandboxes untrusted code with hardware isolation and packs stateful environments into a single .smolmachine file.
This entry doesn't have a long-form writeup yet. Follow the source link above for the full context.
Recent discussion
From the wider webFeatured in
Rust CLI and TUI tools worth installing
Fast, single-binary command-line tools written in Rust - covering git, logs, sandboxes, code intelligence, and terminal workflows.
Security tools for AI coding agents
Sandboxes, scanners, proxies, and governance toolkits that keep autonomous agents from doing damage.
Self-hosted developer tools and PaaS
Open-source, self-hosted alternatives to Heroku, Render, GitHub Actions, and the rest of the SaaS dev stack.
Related entries
CubeSandbox - sub-60ms self-hosted E2B alternative
Open-source sandbox runtime for LLM-generated code built on RustVMM and KVM. Targets sub-60ms cold starts with full kernel isolation, designed as a self-hostable replacement for closed E2B-style services.
ccmd - TUI to audit and clean developer caches
Rust terminal UI for exploring cache directories on macOS and Linux. Scans cached packages for known CVEs, finds outdated deps, and reclaims disk space.
sandboxed.sh - self-hosted agent sandbox orchestrator
Self-hosted Rust orchestrator that runs Claude Code and OpenCode inside isolated Linux workspaces, with skills, configs, and encrypted secrets stored in a git repo.
Agentjail - self-hosted Linux sandbox for AI code
Minimal Linux sandbox for running untrusted code, designed for AI agents and build systems. Self-hosted alternative to Freestyle.sh-style code execution services.