Hermit

Health v2 · maintenance only

Adoption not part of the score

1958 stars · 117 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Hermit is a lightweight unikernel written entirely in Rust, targeting scalable and predictable runtimes for high-performance and cloud computing. Applications are bundled directly with the kernel library so they run without an installed operating system, reducing overhead for virtual machines and HPC workloads.

Use cases

• run Rust applications as a unikernel without a host OS
• build lightweight virtual machines with minimal overhead
• deploy high-performance computing workloads with predictable runtime behavior
• develop a library operating system in pure Rust
• run C/C++, Go, or Fortran applications on a Rust-based unikernel
• experiment with kernel development using Rust's memory safety guarantees

When to choose

• you need a minimal, low-overhead runtime for cloud VMs or HPC
• you want to write or run Rust applications directly on bare metal
• you want kernel-level memory and thread safety via Rust's ownership model
• you prefer a build process integrated with the standard Rust toolchain

When to avoid

• you need a general-purpose OS with full driver and package ecosystems
• your application depends heavily on OS services or dynamic linking
• you need to run unmodified binaries of arbitrary languages without porting
• you require broad hardware support beyond Hermit's targeted platforms

Facets

library · maturity active

programming-language compiler developer-tools operating-systems cloud-computing developer-tools performance rust windows unikernel operating-system kernel rust-lang osdev high-performance-computing virtualization library-os linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="hermit-os/hermit-rs")