cloba.U’s Magic of Stella manga first began in the pages of Manga Time Kirara Max back in 2013, and has since been compiled in nine volumes as of December. Now, according to the November issue of the magazine, the series has just three more chapters remaining before it ends.
Assuming there are no delays between now and then, that would put the ending at December 19.
The TV anime adaptation was released via Sentai Filmworks, which describes the series like so:
Based on the four-panel manga serialized in Manga Time Kirara Max, the series follows first-year high school student Tamaki Honda and her SNS club as they work together to create a self-published game. With Tamaki as the project’s illustrator, she works alongside the club’s other (rather peculiar) members, including Shiina (the club president and game programmer), Ayame (the scenario writer), Kayo (their music composer), and Yumine (the club’s boys’ love expert).