elpa-treemacs-projectile 3.1-2 (arm64 binary) in ubuntu oracular

 Treemacs is a file and project explorer similar to NeoTree or vim’s NerdTree,
 but largely inspired by the Project Explorer in Eclipse. It shows the file
 system outlines of your projects in a simple tree layout allowing quick
 navigation and exploration, while also possessing basic file management
 utilities.
 .
 This package enables support for projectile.