R. Mordechai Eliyahu zt”l, the former Sephardic Chief Rabbi of Israel, has published three volumes of responsa (Ma’amar Mordekhai) and a number of other halakhic books. Among them is his Darkhei Halakhah commentary to Kitzur Shulchan Arukh. The Hebrew Wikisource edition of Kitzur Shulchan Arukh includes this brief commentary, containing mainly rulings based on Sephardic authorities. You can find it online here: link.
See prior freebies here: link