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Install Fern

Fern runs on Linux, macOS (10.12 or later), and Windows. Pick whichever installation method suits you. A complete list of installation options can always be found on the README.md in the repo.

Pre-built binaries are available on the releases page.

  1. Download the archive for your platform.
  2. Extract the fern binary (or fern.exe on Windows).
  3. Move it somewhere on your $PATH, for example /usr/local/bin on Linux or macOS.

Homebrew (macOS and Linux)

brew tap InodeLabs/tap https://codeberg.org/InodeLabs/homebrew-tap
brew install --cask fern

Scoop (Windows)

scoop bucket add InodeLabs https://codeberg.org/InodeLabs/scoop-bucket
scoop install fern

Linux packages (DEB / RPM)

Pre-built .deb and .rpm packages are available on the releases page.

# Debian / Ubuntu
sudo dpkg -i fern_*.deb

# Fedora / RHEL / openSUSE
sudo rpm -i fern_*.rpm
# or with dnf:
sudo dnf install fern_*.rpm

Snap

snapcraft pack
sudo snap install fern_*.snap --dangerous

Fern stores its config, indexes, and state inside the snap's common per-user data area so they persist across snap revisions. Vaults in your home directory work through the home interface. If you keep vaults on USB drives or other external media, connect removable-media after install:

sudo snap connect fern:removable-media

Go install

If you have Go 1.25 or later installed:

go install codeberg.org/InodeLabs/fern@latest

The binary is placed in ~/go/bin (Linux/macOS) or %HOME%\go\bin (Windows).

Note: if running fern gives a "command not found" error, add the Go bin directory to your $PATH:

# Linux / macOS - add to ~/.bashrc or ~/.zshrc
export PATH="$PATH:$(go env GOPATH)/bin"

On Windows, add %HOME%\go\bin to your user Path environment variable in System Settings.

Build from source

You will need Go installed first.

git clone https://codeberg.org/InodeLabs/fern
cd fern
go install

Verify the installation

Run:

fern --version

You should see the current version number printed. If the command is not found, re-check that the install directory is on your $PATH.

Next: Create a vault