The advantage of rolling your own is that you get to optimize and control things at a level that is just not possible when working through a complex external co

The advantage of rolling your own is that you get to optimize and control things at a level that is just not possible when working through a complex external component Then you stick it on a filesystem that does not work the way you think it does or even worse you stick it on a remote filesystem (eg CIFS/SMB) that does not work the way you think it does and is now backed by an FS that also does not work the way you think it does. Your DB may work fine but make sure you onboard the lessons that all the others have learnt through bitter experience.