Zero Install

the antidote to app-stores

Install from Source

This is the newer OCaml version of 0install. There is also an older pure Python version. The OCaml version is completely backwards compatible with the Python version.

Name 0install
Maintainer Thomas Leonard
License GNU Lesser General Public License
SCM GIT repository

If you are looking for a package or the generic binaries, try the main downloads page.


Download the latest .tar.bz2 archive from the download page (and the corresponding .sig file if you want to verify it), or using wget:


Check that the signature is correct using GPG (this also ensures that GPG is installed correctly). You'll need my GPG key, which you can download and import using --recv-key (or manually):

gpg --recv-key --keyserver 1C325588
gpg --verify 0install-2.14.1.tar.bz2.sig
gpg: Signature made Wed 24 Apr 2019 16:42:15 BST
gpg:                using RSA key BB546E44A179B1AD424041D70616A2C61C325588
gpg: Good signature from "Thomas Leonard <>"
gpg:                 aka "Thomas Leonard <>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 5DD5 8D70 899C 454A 966D  6A51 7513 3C8F 94F6 E0CC
     Subkey fingerprint: BB54 6E44 A179 B1AD 4240  41D7 0616 A2C6 1C32 5588

The warning is just to tell you that you haven't yet established that the key really belongs to me (ultra-paranoid users will now cross-check the finger-print using some other source of information).

You'll probably need to install some OCaml dependencies before you can build. See the README for details. You should then extract the archive, change directory inside it and build:

tar xf 0install-2.14.1.tar.bz2
cd 0install-2.14.1

Installing normally Installing without root access

For a normal install, either su to root, install, and exit from root, or use sudo:

sudo make install

If you don't have the root password, use this command. You'll need to make sure that ~/bin is in $PATH in this case.

make install_home
export PATH=$HOME/bin:$PATH

Logging out and back in again will ensure $PATH and the Applications menu get updated correctly, on Ubuntu at least.

You now have a new 0install command...