I believe citb0in is asking where to download the PureBasic compiler itself, not Etar's PureBasic source code file(s). I haven't searched myself, but it shouldn't be rocket science to find the needed version of the PureBasic compiler for Linux with the help of internet search engines and/or Linux package search sites.
Maybe @etar can help us here ?
You may be lucky if you would address OP with correct spelling of his username @Etar, but maybe you're still unlucky because Etar was last active in this forum around July 27th, 2023.