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Flint
Flint is a lightweight KVM/libvirt VM management tool with an embedded web UI, CLI, and REST API, designed for fast provisioning and low overhead.
Flint is a modern, self-contained management tool for Linux virtualization using KVM via libvirt. It provides an embedded web interface, a CLI, and an HTTP API to create, manage, and automate virtual machines without dealing with libvirt XML directly.
Key Features
- Embedded Web UI with passphrase-based login and session cookies
- CLI and authenticated HTTP API (bearer token) for automation and integrations
- VM lifecycle management (list, launch, start/stop, manage resources)
- Cloud image browsing and downloads to speed up VM creation
- Cloud-init provisioning support and snapshot-based templates
- Manage local or remote libvirt hosts via SSH transport
Use Cases
- Homelab and developer workstation VM management with minimal overhead
- Lightweight alternative to heavier virtualization management platforms
- Automating VM provisioning and operations through a scriptable CLI/API
Limitations and Considerations
- Requires a Linux host with QEMU/KVM and libvirt (libvirt 6.10.0+)
- Remote management relies on SSH key-based authentication (no password auth)
Flint is a pragmatic choice for operators who want a small footprint and a modern interface while keeping full control over KVM/libvirt infrastructure. It focuses on fast workflows, automation, and simple deployment as a single binary.
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