"The rather large flatpak process can be avoided by the procedure outlined on https://github.com/cboxdoerfer/fsearch/wiki/Snap-is-no-longer-officially-supported requiring some 262KB On first activation you will need to indicate the starting point; in my case /home/nicky seemed to be what I might want. Other filespace locations can be added or removed from the scope. By looking in /usr/share/applications an entry for fshare can be copied to the desktop, and poking it with the rodent will activate the window for fsearch - wherein you can initiate a search and mess with the options..."
"Amazing imagery! (Though, longitude zero does not pass htrough George Airy's telescope at Greenwich, and there can be tears in the image near the poles, and image registration can be a hundred yards off - compare images of the same place at different times) Installation on Mint 21 went fine, but, as with Mint 20.1, the software update process is damaged) and the followng appears: GPG error: http://dl.google.com/linux/earth/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4EB27DB2A3B88B8BThe repository 'http://dl.google.com/linux/earth/deb stable InRelease' is not signed. Via the advice of Prsman below, that complaint vanishes while "W: http://dl.google.com/linux/earth/deb/dists/stable/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details." appears. However, the update manager will now proceed to update Google Earth."
"Installation was like one-hand-clapping. Things happened, but, no link to activate Octave was to be seen. From the command line, octave was recognised and a command-line interface appeared. By looking in /usr/share/applications an entry called GNU Octave (with nice icon) could be found, and copying that to the desktop gave a suitable target for a rodent poke to activate Octave's command line, this time opening a graphical style window. The download was about 80MB, but a previous installation via "flatpak" required ~600MB as I recall so that's to be avoided. Starting Octave from that installation was much slower than with the current installation via the software manager. Once figured out. I use Octave to plot data, and good plots result. Text manipulation is maddening, and simple variables being 1x1 matrices is strange. More frustrating is that what should be a one-dimensional array (a "vector") of length N sometimes manifests as 1xN and sometimes as Nx1."
"The good: updates files with data compression, and only transfers those 4MB blocks that have been changed. Less good: chooses to update itself (~100MB a go) and won't be discouraged. Just now, installation on Mint 21 has been difficult. Via the Software Manager entry, three times the download attained ~90% and then the cpus went busy while memory and swap space was filled steadily until linux killed the process. Separately installing the requested puthon3-gpg stopped the complaint about being unable to verify the package, but, still a crash. Via https://www.dropbox.com/install were two commands for a "headless install" via the command line, and, this worked (yet another download), leading to a sign-in request through Firefox, and all was well thereafter."