~2023-08-10, to allow a compilation to complete

# increase swap, from the default 100 MB
# without this, the compilation was killed for out-of-memory after 5h or so


vi /etc/dphys-swapfile   # increase size to 2048 [MiB](as 32-bit system max, supposedly)

/etc/init.d/dphys-swapfile restart   # activate

free
    Mem:     429
    Swap:   2047