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QUptime/docs/installation.md
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# Installation
`qu` ships as a single static Linux binary. Pick whichever method
matches how you manage software on the host.
> Choosing a deployment recipe instead? Jump to
> [systemd](deployment/systemd.md), [Docker](deployment/docker.md),
> [Tailscale](deployment/tailscale.md), or
> [public-internet](deployment/public-internet.md).
## Pre-built binary (recommended)
Releases are published to the [Gitea releases
page](https://git.cer.sh/axodouble/quptime/releases) with a
`SHA256SUMS` file. Two architectures are built: `linux-amd64` and
`linux-arm64`.
```sh
# Always pin to a tag — `latest` resolves on the server side.
TAG=v0.1.0
ARCH=amd64 # or arm64
curl -fSL -o qu \
"https://git.cer.sh/axodouble/quptime/releases/download/${TAG}/qu-${TAG}-linux-${ARCH}"
curl -fSL -o SHA256SUMS \
"https://git.cer.sh/axodouble/quptime/releases/download/${TAG}/SHA256SUMS"
# Verify before installing.
sha256sum --check --ignore-missing SHA256SUMS
install -m 0755 qu /usr/local/bin/qu
```
## One-line install script
The repo ships an `install.sh` that handles the download, checksum,
shell-completion installation, and a default systemd unit file. Run it
under `sudo` so it can write to `/usr/local/bin` and
`/etc/systemd/system`.
```sh
curl -fsSL https://git.cer.sh/Axodouble/QUptime/raw/branch/master/install.sh | sudo bash
```
What it does:
1. Looks up the latest release via the Gitea API.
2. Downloads the binary to `/usr/local/bin/qu`.
3. Installs bash / zsh / fish completion if a target directory exists.
4. Writes `/etc/systemd/system/qu-serve.service` and enables it (but
does **not** start it — you need to run `qu init` first).
The unit it writes is minimal. For a production unit with hardening,
see the [systemd deployment guide](deployment/systemd.md).
## Build from source
Requires Go 1.24.2 or newer.
```sh
git clone https://git.cer.sh/axodouble/quptime.git
cd quptime
go build -ldflags "-X main.version=$(git describe --tags --always)" -o qu ./cmd/qu
./qu --version
```
Static binary, no cgo. `CGO_ENABLED=0` is the default on a clean Go
install; if you've enabled cgo globally, set it explicitly:
```sh
CGO_ENABLED=0 go build -trimpath -ldflags "-s -w" -o qu ./cmd/qu
```
## Docker image
A multi-arch (`amd64` + `arm64`) image is published to the Gitea
registry on every tag and every push to `master`:
```
git.cer.sh/axodouble/quptime:master # tip of main
git.cer.sh/axodouble/quptime:latest # latest tagged release
git.cer.sh/axodouble/quptime:v0.0.1 # pinned release
```
See the [Docker deployment guide](deployment/docker.md) for compose
files and volume layout.
## Verifying the install
```sh
qu --version
qu --help
```
If completions installed, `qu <tab>` will list subcommands. After
`qu init` you can run `qu status` to confirm the daemon is reachable
over its control socket.
## Next steps
- [Configure the node and the cluster](configuration.md).
- Pick a deployment recipe under [docs/deployment/](deployment/).
- Walk through the [architecture](architecture.md) so the operational
guarantees are clear before you commit to a topology.