Yeah you can search for it but it's not obvious from the site. I just think it's a shame that it's touted as open source but they don't appear to have given much thought to the open source demographic. It's not on f-droid.
They have given it thought, and have purposely decided not to distribute it through f-droid [0]. Yes you have to search for it, but if you are savvy enough to use un-googled android, you will be likely able to find it.