Auto save plug-in for GIMP [2.8, 2.10]

gimp_autosave.py

#!/usr/bin/env python

# Original (by yahvuu): https://www.gimpusers.com/forums/gimp-developer/11718-autosave-plugin
import tempfile
import os
from time import *
from gimpfu import *

def autosave(image, layer):
    # Backup interval in seconds (600 = 10 minutes)
    backup_interval = 10 * 60

    print('Autosave activated')

    backup_files = {}

    while 1:
        sleep(backup_interval)

        print(ctime(time()))

        cur_images = {}
        for k in gimp.image_list():
            cur_images[k.ID] = k

            cur_ids = cur_images.keys()
            old_ids = backup_files.keys()

            new_ids = [x for x in cur_ids if x not in old_ids]
            del_ids = [x for x in old_ids if x not in cur_ids]

        # create (empty) backup files for new images
        for id in new_ids:
            prefix = 'gimpbackup-ID' + str(id) + '-'
            fn = tempfile.mkstemp(prefix=prefix, suffix='.xcf')
            os.close(fn[0])
            backup_files[id] = fn[1]

        # remove closed images' backups
        for id in del_ids:
            filename = backup_files[id]
            del(backup_files[id])

            try:
                os.remove(filename)
            except:
                gimp.message('ERROR: ' + sys.exc_info()[0])

        # backup images
        for id, filename in backup_files.iteritems():
            img = cur_images[id]

            try:
                print('Saving ' + img.name + '-' + str(id) + ' to ' + filename)
                pdb.gimp_xcf_save(1, img, img.active_drawable, filename, filename)
            except:
                gimp.message('ERROR: ' + sys.exc_info()[0])


register(
    "autosave",
    "Autosave dirty hack",
    "Periodically saves all opened images to a %temp% directory",
    "public domain",
    "public domain",
    "2016",
    "<Image>/File/Activate Autosave",
    "*",
    [],
    [],
    autosave)

main()

Extracted your plugin into /home/username/.gimp-2.10/plug-ins/ folder. Made it executable. Opened Gimp but the entry did not show up under File. So I deleted /home/username/.gimp-2.10/pluginrc. Restarted Gimp but it still didn't show up! I wonder if you could help me.
Gimp v 2.10
Operating System: Arch Linux
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
Kernel Version: 6.9.5-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i5-10600 CPU @ 3.30GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 630