Install the ɳSelf CLI on 64-bit ARM Linux (linux/arm64). Tested on AWS Graviton2/3, Ampere Altra (Hetzner CAX), Raspberry Pi 4/5 (64-bit OS), Oracle Ampere, and Scaleway EM-A210R-HDD.

The ɳSelf CI suite runs build + unit tests on ubuntu-24.04-arm runners for every release, verifying the arm64 binary before it ships.

uname -m
# aarch64   ← supported
# armv7l    ← NOT supported — use Raspberry Pi OS 64-bit instead

Ubuntu / Debian (arm64):

curl -fsSL https://get.docker.com | sh
sudo usermod -aG docker $USER
newgrp docker

Amazon Linux 2023 (Graviton):

sudo dnf install -y docker
sudo systemctl enable --now docker
sudo usermod -aG docker $USER

Verify:

docker --version        # Docker version 24+
docker compose version  # Docker Compose version v2+

curl -sSL https://install.nself.org | bash

The script detects aarch64 / arm64 and downloads nself-linux-arm64.tar.gz.

VERSION=$(curl -s https://api.github.com/repos/nself-org/cli/releases/latest | grep '"tag_name"' | cut -d'"' -f4)
curl -L "https://github.com/nself-org/cli/releases/download/${VERSION}/nself-linux-arm64.tar.gz" -o nself.tar.gz
tar -xzf nself.tar.gz
sudo mv nself /usr/local/bin/nself
chmod +x /usr/local/bin/nself

Verify the checksum:

curl -L "https://github.com/nself-org/cli/releases/download/${VERSION}/checksums.txt" -o checksums.txt
grep "nself-linux-arm64" checksums.txt | sha256sum --check

nself version
# nself v1.0.9 (linux/arm64)

nself doctor

All official ɳSelf plugin images ship with linux/amd64 + linux/arm64 manifests. Docker automatically pulls the linux/arm64 variant on arm64 hosts, no flags needed.

If any plugin image produces a platform mismatch warning:

WARNING: The requested image's platform (linux/amd64) does not match the detected
host platform (linux/arm64) and no specific platform was requested

That plugin does not yet have an arm64 layer. File a bug at github.com/nself-org/plugins.

nself doctor fails: Docker not running

sudo systemctl start docker
sudo systemctl enable docker

nself start is slow on first pull

First-time image pulls on arm64 servers are typically faster than on developer laptops because cloud servers have better upstream bandwidth. Budget 1–3 minutes on a typical VPS on first run.

Hetzner CAX / Ampere Altra: cgroups v1 warning

Newer Docker versions default to cgroups v2. If you see warnings about cgroup version:

# Check cgroup version
stat -fc %T /sys/fs/cgroup
# tmpfs = cgroups v1, cgroup2fs = cgroups v2

cgroups v2 is fully supported and preferred. No action needed on Ubuntu 22.04+.

AWS Graviton: IMDSv2 required

If your instance uses IMDSv2, Docker Hub pulls work normally. ɳSelf does not call the EC2 metadata service directly.

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