External database updater?

Hi.. is there any tool that can manipulate kodi database directly? updating via kodi /JSON has 2 issues for me :

– Kodi needs to be open on server, my diskless setup does not allow this, long story short opening kodi will lock the database and diskless client wont be able to access it..
– I frequently get “unable to connect to server” due to thetvdb’s unreliable uptime… (is there no known way to “auto-yes” the message?)

For now i’m using a dirty workaroung by symlink the userdata and syncronizing it using syncovery.. but it still locks up if a client boots then the server updates kodi..

I’ve seen some tools mentioned in wiki but they dont seem to offer this feature