kraftkit ☆

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Description:
Build and use highly customized and ultra-lightweight unikernel VMs

Type: Formula | Latest Version: 0.12.5@0 | Tracked Since: Dec 25, 2025

Links: Homepage | @unikraft | formulae.brew.sh

Category: Developer tools

Tags: unikernel virtualization devops cloud-native golang

Install: brew install kraftkit

About:
KraftKit is a command-line interface (CLI) tool designed to build, manage, and run unikernels using the Unikraft micro-library OS. It allows developers to create highly specialized, single-address-space virtual machines by compiling applications with only the necessary OS components. This results in significantly reduced boot times, minimal attack surface, and lower resource consumption compared to traditional container or VM deployments.

Key Features:

Builds ultra-lightweight unikernel images from existing codebases
Manages dependencies and library configurations automatically
Provides a Docker-like CLI experience for unikernel orchestration
Supports multiple architectures and hypervisors (e.g., KVM, Xen)

Use Cases:

Deploying high-performance microservices with sub-second boot times
Running secure, minimal-footprint applications in edge computing environments
Creating specialized virtual appliances for embedded systems

Alternatives:

Docker – Docker containers share the host kernel, while KraftKit produces standalone unikernels that eliminate the OS overhead entirely.
QEMU – QEMU is a generic emulator, whereas KraftKit is a specialized build system and runner specifically for the Unikraft ecosystem.

Version History

Detected	Version	Rev	Change	Commit
Dec 25, 2025 7:59pm	0.12.5	0	VERSION_BUMP	b7fc406d
Oct 15, 2025 8:13pm		0	VERSION_BUMP	32fed0c0
Sep 15, 2025 1:10am		1	VERSION_BUMP	911a3d18
Dec 27, 2024 9:21am		0	VERSION_BUMP	1d1ba7dd
Nov 26, 2024 1:09pm		0	VERSION_BUMP	467c6f81
Nov 26, 2024 1:29am		0	NEW	4c1e2286