Resize the partition

[0xbaha]

https://github.com/ba1x/env-setup/blob/f2ced94fc71770035d3a8c1d2d38ef9e10faf658/README.md?plain=1#L100-L104

    /        5.0 GB  ext4
    /boot    250 MB  ext4
    /home    3.0 GB  ext4
    /var     750 MB  ext4
    SWAP     1.0 GB  swap

[0xbaha]

/         3.4 GB  ext4
/boot     250 MB  ext4
/home     2.0 GB  ext4
/var      750 MB  ext4
/var/lib  1.0 GB  ext4
/srv      100 MB  ext4
/usr      6.5 GB  ext4
SWAP      1.0 GB  swap

[0xbaha]

after trial-and-error, it is recommended to not separate the partition if the disk size is small (<100 GB)