macOS
Homebrewverified · 100%
brew install solo2-clilocal Homebrew formula metadata
brew
Install solo2-cli with Homebrew, Nix
CLI to update and use Solo 2 security keys. Version 0.2.2 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Nixverified · 92%
nix profile install nixpkgs#solo2-clinixpkgs package indexes · pkgs/by-name/so/solo2-cli/package.nix · source: api.github.com
overview
Package summary
CLI to update and use Solo 2 security keys
Project links
Commands and aliases
- solo2
history
Project history and usage
solo2-cli is the Rust command-line utility and library package for SoloKeys Solo 2 security keys, aimed at firmware updates, device-mode management, and developer-oriented administration.
Project history
The official README describes the package as a Solo 2 library and CLI, while noting that the CLI is now maintained in the broader Solo 2 monorepo. The Cargo metadata names the published crate `solo2`, with a `solo2` binary and documentation on docs.rs.
The README reflects the hardware-oriented nature of the project: Solo 2 devices have regular and maintenance modes, Linux maintenance mode needs udev rules, and the CLI can switch between modes with commands such as `solo2 app admin maintenance` and `solo2 bootloader reboot`.
Adoption history
The official SoloKeys guide positions solo2-cli as the technical-user and developer tool for managing Solo 2, while basic FIDO2 use does not require software installation. The supplied package-manager facts list Homebrew and Nix packages, which matters for users who want a packaged CLI instead of a direct Cargo install.
How it is used
The README documents `cargo install solo2`, optional experimental `dev-pki` support, verbose logging flags, device UUID reads, switching to maintenance mode, and bootloader reboot. The SoloKeys guide says the CLI can manage passkeys, update firmware, set PINs, and configure PIV and OpenPGP settings.
Why package nerds care
solo2-cli is interesting because it packages hardware lifecycle operations as a normal developer CLI. It touches USB identifiers, PCSC/CTAP access, udev rules, firmware update flows, Rust crates, and security-key administration in one small executable.
Timeline
- 2021: The README notes Solo 2 support in the CCID driver from release 1.4.35 on July 25, 2021.
- 2022: Official git tags include the 0.2.x line.
- 2026: The SoloKeys guide presents solo2-cli as the command-line management option for Solo 2.
Related projects
- The README points to the Solo 2 monorepo as the current maintenance home. It also references lpc55-host, PCSC/CTAP interfaces, CCID driver support, and udev rules.
Sources
- Input package-manager facts: source_facts.package-manager
- Official Cargo metadata: https://github.com/solokeys/solo2-cli/blob/main/Cargo.toml
- Official README: https://github.com/solokeys/solo2-cli#readme
- Official Solo 2 guide: https://solokeys.com/pages/solo-2-guide
- docs.rs documentation: https://docs.rs/solo2/latest/solo2
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 10 platform targets.
- Build metadata lists 2 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
solo2 | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version0.2.2
manager updated
local dataok
upstreamcurrent
latest detectedv0.2.2
https://github.com/solokeys/solo2-cli
- infoNo package-manager update timestamp was available.low confidence
install metadata
Package metadata
| Package key | brew:solo2-cli |
|---|---|
| Version | 0.2.2 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/solo2-cli |
| Homepage | https://solokeys.com/ |
| Repository | https://github.com/solokeys/solo2-cli |
| Upstream docs | https://docs.rs/solo2/latest/solo2 |
| License | Apache-2.0 OR MIT |
| Source archive | https://github.com/solokeys/solo2-cli/archive/refs/tags/v0.2.2.tar.gz |
| Build dependencies | pkgconf, rust |
| Bottle | available (on arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | solo2-cli |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Nix95%
solo2-cli
nix profile install nixpkgs#solo2-cli- normalized package name match
- Matched by: Solo2 Cli
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment