Bhatti – Self-hostable Firecracker orchestrator with auto pause/wake
Bhatti spins up Linux VMs on any box with KVM — Pi 5, Hetzner AX, cloud VM with nested virt. - Each VM has its own kernel, filesystem, and IP - Idle VMs pause their CPUs and snapshot themselves to disk; the next request wakes them in 3.7ms warm or 360ms cold (p50, Hetzner AX102) - Publish any port → public URL with auto-wake on first hit - Pull any OCI/Docker image as a rootfs, or save a running sandbox as one - Multi-tenant from day one — per-user bridges, encrypted secrets, rate limits - Single Go binary, Apache 2.0 The decisions page is the most fun read on the site: vsock state…
In plain words
Bhatti is a self-hosted orchestrator that runs isolated Linux VMs using Firecracker on any KVM-capable hardware, from Raspberry Pi 5 to cloud servers. Each VM has its own kernel, filesystem, and IP address. Idle VMs pause and snapshot to disk, waking in milliseconds on demand. Users can publish ports as public URLs with automatic wake-on-access, pull container images as VM filesystems, and manage multiple tenants with per-user isolation and encrypted secrets. Distributed as a single Go binary under Apache 2.0.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Bhatti spins up Linux VMs on any box with KVM — Pi 5, Hetzner AX, cloud VM with nested virt. - Each VM has its own kernel, filesystem, and IP - Idle VMs pause their CPUs and snapshot themselves to disk; the next request wakes them in 3.7ms warm or 360ms cold (p50, Hetzner AX102) - Publish any port → public URL with auto-wake on first hit - Pull any OCI/Docker image as a rootfs, or save a running sandbox as one - Multi-tenant from day one — per-user bridges, encrypted secrets, rate limits - Single Go binary, Apache 2.0 The decisions page is the most fun read on the site: vsock state after restore, why all snapshots are Full, the systemctl shim, the ARP retransmit trick. curl -fsSL bhatti.sh/install | sudo bash (sudo because the daemon needs /dev/kvm and sets up the Firecracker jailer + a bridge; the CLI-only install — pipe to plain `bash` — needs no root) Site: https://bhatti.sh Repo: https://github.com/sahil-shubham/bhatti Decisions & learnings: https://bhatti.sh/docs/under-the-hood/decisions/
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