Editing Synology package files (section)

===Tips for creating packages===
# Since most keywords and values might be parsed by unix programs and shell scripts during the installation process, it is recommended not to use any special characters (like '"';-[!@]\ ....) in script and package names, just stick with regular ASCII.
# Installation is done under 'root' rights. THIS CAN BE EXTREMELY DANGEROUS. Be sure in what you are doing. Stay away from any 'normal' directories like /sbin /usr/bin /usr/syno/bin, unless you know what you are doing. Dont install .spk unless you trust the sender or checked the installation scripts.
# Installing and using .spk files is at your own risk. Don't blame Synology -or others- for not working correctly or not giving the right answers.
# Creating softlinks from /usr/syno/synoman/webman/3rdparty/ to the package on a volume is a better idea then to place all under /usr/syno... directory itself. Doing this way, you prevent that disk doesn't run out of space
# You can add your 'own' key="value" pairs to the INFO file. These will be ignored by the installer, but can be used for 'global configuration keys' during your post/preinstall scripts.
# Make sure the read-write-execute rights are in place. Use the 'chown' and 'chmod'  commands in the scripts to make sure they are.
# 3rdparty options always points to webpages. If you are using the same webserver/port as the disk station manager, '.nph' files will not work (without altering configuration), but ".cgi" files will. They will be treated the 'old cgi way', which means the webserver just executes them and the cgi program makes sure they spit out the relevant HTML code.
# Because the installation process is called via the webmanager interface, it is possible to retrieve more information via the environment variables that might be needed during the installation process. You can think of "USERNAME"  => logged in user or "DOCUMENT_ROOT" => handy to know where to install .html or .cgi files for use under the webmanager interface.