You could read just the last answer above your question…
edit: I got the rights to upload now. Attached the original file, just copied the content out of the folder insider the spk package. OpenHAB-1.8.2-DSM6-RC-syno-noarch-0.001.spk.pdf (87.5 KB)
save the file and rename it from .pdf to .spk then install on synology