Suitability of sqlite or MariaDB to replace MySQL as akonadi DB

Dear list,


I was wondering what the current suitability is of sqlite and MariaDB to 
replace MySQL as the akonadi DB implementation. (I am aware that Postgresql 
is also an option, but also know it can function perfectly for akonadi.)

I read that in the past sqlite was not performant enough for concurrent 
queries, but since then have seen multiple people state that it works fine. 
Any experiences from list subscribers?

I have heard that MariaDB is a drop-in replacement for MySQL, but have the 
impression that some divergence has happened. Did anyone here move to 
MariaDB?


Thanks,

Erik