Septima - A GNOME-native front-end for 7-Zip ZS

superuser-miguel · July 11, 2026, 6:18pm

Project information: A GNOME-native front-end for 7-Zip ZS — browse, extract, and create archives with Zstandard, Brotli and Fast-LZMA2, and a real compression-tuning interface no other Linux archiver offers.

Name: Septima
Homepage: Septima — modern-codec 7z archiver for Linux
License: GPL-3.0-or-later.
Upstream has been contacted: I am the developer of Septima.

I have been out of the development world day to day for a little while so this is something I am looking forward to. If I need to provide more information please reply, it’s been a while since I’ve been here but I’m glad to be back !

superuser-miguel · July 11, 2026, 10:36pm

I did some research since I mae this post and went ahead and submitted it myself.

Thanks for anyone review it.

github.com/flathub/flathub

Add io.github.superuser_miguel.Septima (#9293)

new-pr ← superuser-miguel:io.github.superuser_miguel.Septima

opened 10:02PM - 11 Jul 26 UTC

superuser-miguel

+1267 -0

### Please confirm your submission meets all the criteria - [x] Please desc…ribe the application briefly. Septima is a GTK4 / libadwaita front-end for 7-Zip ZS (`7zz`): browse, extract (with progress, cancel and passwords) and create archives with modern codecs — Zstandard, Brotli, Fast-LZMA2, LZ4/LZ5, Lizard, plus LZMA2/PPMd/BZip2 — a real compression-tuning UI (level/dictionary/threads with a live memory estimate, named presets), transparent `.tar.zst`/`.tar.xz` create/browse/extract, and a checksum calculator (BLAKE3/SHA-3/xxHash) with verify-against-a-checksum-file. GPL-3.0-or-later. Portals only (no `--filesystem`). The `7zz` binary is bundled as a separate module (RAR decode-only). Upstream: https://github.com/superuser-miguel/septima - [x] Please attach a video showcasing the application on Linux using the Flatpak. https://github.com/user-attachments/assets/3345a618-8a17-4728-b114-b0c48c433846 - [x] The Flatpak ID follows all the rules listed in the [Application ID requirements][appid]. - [x] I have read and followed all the [Submission requirements][reqs] and the [Submission guide][reqs2] and I agree to them. - [x] I am an author to the project. [appid]: https://docs.flathub.org/docs/for-app-authors/requirements#application-id [reqs]: https://docs.flathub.org/docs/for-app-authors/requirements [reqs2]: https://docs.flathub.org/docs/for-app-authors/submission

superuser-miguel · July 22, 2026, 3:27am

We are LIVE ! Anyone looking to test this application can download the flatpak (auto updating included) from the Github. A Modern 7z ZS GUI for those looking to have more than just command line tool !