caitlyn has built a TTF font package which provides fonts with both Arabic and Latin support (Naqsh fonts).
It is currently in testing:
naqsh: naqsh (An open source font by Lateef Sagar Shaikh)
naqsh: Naqsh is an open source font by Lateef Sagar Shaikh. All
naqsh: characters are designed by Lateef Sagar Shaikh except the Latin
naqsh: characters, which are designed by Umar Rashid. Naqsh supports
naqsh: basic Latin, Latin extended, and Arab Presentation Forms code
naqsh: Lateef Sagar Shaikh <firstname.lastname@example.org>
naqsh: GNU General Public License, version 2
Post feedback in this thread.