Flatsonar

Olympus

by Everest Team

Cross-platform Celeste Mod Manager

Dangerous permissions Verified creator MIT v26.09.07.04
Screenshot 1 of Olympus Screenshot 2 of Olympus

About

The new Everest installer / manager, powered by Löve2D.

Everest is an open-source mod loader and modding API for Celeste, allowing you to create custom map packs, texture replacements and code mods to your heart's content.

  • In-game updater and dependency downloader
  • Cross-platform: Windows, macOS, Linux
  • TASBot-verified
  • Easily switch between Everest and vanilla Celeste from the title screen or Olympus
  • Load mod files without messing with your original files
  • Sound test - including easter eggs hidden in Celeste by the legendary Kevin Regamey
  • Quality of life improvements
  • Enhanced Debug Mode
  • A lot of unhardcoded and customizable entities for your custom maps
  • And much more that did not fit into this list. Whew!

Permissions

2 permissions weaken the sandbox. Flatsonar asks before installing.

  • sandbox escape: can run commands on the host via flatpak-spawn
    --talk-name=org.freedesktop.Flatpak
  • full access to your home folder
    --filesystem=home
  • inter-process communication (needed for X11)
    --share=ipc
  • network
    --share=network
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • audio
    --socket=pulseaudio
  • Wayland display
    --socket=wayland
  • GPU acceleration
    --device=dri
  • access to ~/.var/app/com.valvesoftware.Steam/data/Steam/steamapps/common/Celeste
    --filesystem=~/.var/app/com.valvesoftware.Steam/data/Steam/steamapps/common/Celeste
  • access to /run/media
    --filesystem=/run/media

Who publishes this

The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.

  • verified on Flathub: the developer proved they control this app id
    publisher:flathub

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.