Running frugal install of Fossapup64 Puppy Linux 9.5 with Gnucash 4.6 on flatpak and Libreoffice 7.2.

I copied the following files from Fossapup64 iso to Fossapup folder on one partition of Hard Disk:

adrv_fossapup64_9.5.sfs, fdrv_fossapup64_9.5.sfs, puppy_fossapup64_9.5.sfs, zdrv_fossapup64_9.5.sfs, vmlinuz, initrd.gz

Then I created following boot entry in /etc/gub.d/40_custom:

menuentry 'Fossapup64 9.5' {

search --no-floppy --fs-uuid --set 1e364a7e-9e6d-468a-99a2-404936a14d59

linux /Fossapup/vmlinuz pfix=nocopy pmedia=atahd psubdir=Fossapup 

initrd /Fossapup/initrd.gz 

} 

and updated Grub: 

sudo update-grub 

I could boot into Fossapup64 Puppy Linux 9.5 Desktop. 

I installed flatpak with all its dependencies from Puppy Package Manager

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo 

and installed Gnucash: 

flatpak install flathub org.gnucash.GnuCash

and run it: 

flatpak run org.gnucash.GnuCash 

For Libreoffice there was Menu/Document/Get_Libreoffice_download_and_install_Libreoffice available on the Desktop.