Snaps are squashfs images, which by definition are read-only. This can make them difficult to debug, since they cannot be edited. That's where this snap comes in. Run the following command:
$ /snap/overlay/current/overlay /snap/<name>/<version>
Now the snap can be edited! This is done via overlayfs, and it's temporary. One can undo it by rebooting, or by simply unmounting the overlay:
$ sudo umount /snap/<name>/<version>
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
On Debian 9 (Stretch) and newer, snap can be installed directly from the command line:
sudo apt update
sudo apt install snapd
After this, install the snapd snap in order to get the latest snapd:
sudo snap install snapd
To install overlay, simply use the following command:
sudo snap install overlay
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.
