sys1
Free · open source · public domain
sys1 joins the spare power of every machine you have into one cloud for websites, media servers, backups and AI. You won't notice it running.
Install sys0 on every machine that lends its power. Run sys1 on the one that coordinates. The node is a client too, so one computer is already a working pool.
A friendly setup wizard, then it disappears into the background.
Machines, apps and the marketplace in one live view.
Apps can save progress to a small checkpoint file. If a machine fails, the app carries on somewhere else from that checkpoint.
sys0 restarts the app, waiting 0.5s, then 1s, 2s, 4s.
sys0 stops trying on this machine and sends the app's checkpoint to the node.
The node picks a different machine and sends it the app with the checkpoint.
The app starts from its checkpoint. A machine that just goes offline is replaced within about 15 seconds.
Anyone can lend you a machine, and you can lend yours to anyone. Both sides are protected.
Mark a machine as yours or as shared. Shared machines only ever run sandboxed containers, and the client enforces it.
TLS 1.3 with the node's certificate pinned in the join code. No certificate authority in the middle.
Third-party apps need an Ed25519 signature from a key you chose to trust. Change one byte and it won't deploy.
Every change is written to a checksummed, fsync'd journal before it happens. Unplug the node and it picks up where it left off.
Bound to localhost and locked with a private key, with strict CSP and protection against CSRF and DNS rebinding.
Public domain, three small dependencies, no CGO, no telemetry. The security model lists what's still open, too.
Both apps come in every download. Each install script checks the SHA-256 checksum before installing anything. Read a script first if you like; they're short.
brew install a-hackers-guide/tap/sys1
curl -fsSL https://a-hackers-guide.github.io/sys1/install.sh | sh
irm https://a-hackers-guide.github.io/sys1/install.ps1 | iex
Or pick an installer from Releases:
.pkg (macOS) .msi (Windows) .deb .rpm .apk .pkg.tar.zst AppImage .snap FreeBSD .pkg .txz .tzst .ipk .zip .tar.gz.
Also on Scoop (scoop install a-hackers-guide/sys1) and as a container (ghcr.io/a-hackers-guide/sys1).
Coming next: winget, Flatpak, AUR, Nix and more
(status of each).
Deploy in one click. The pool picks the machine. These come built in; anyone can publish signed packages.
One Go codebase, no C dependencies, a single file per platform. CI builds all of these on every change.
| Platform | CPUs | Client | Node | Lowest priority via |
|---|---|---|---|---|
| Windows | amd64 arm64 | Yes | Yes | Idle class + background mode |
| macOS | arm64 amd64 | Yes | Yes | Background QoS + nice 19 |
| Linux | amd64 arm64 arm 386 riscv64 ppc64le s390x mips64le | Yes | Yes | nice 19 + idle I/O on every thread |
| FreeBSD, OpenBSD, NetBSD, DragonFly | amd64 arm64 | Yes | Yes | nice 19 |
| Solaris, illumos, AIX | amd64 ppc64 | Yes | Yes | nice 19 |
| Android, Android TV | arm64 | Binary today | – | Only while charging and idle; app on the roadmap |
| iOS, Apple TV | arm64 | Sideload / jailbreak | – | On the roadmap |
Everything is written down: how it works, what it guarantees, and what's still being built.