Sadly we don't have a "get this" answer for someone just wanting a DS flash cart to drop into a device and have it play all the games, some ROM hacks, maybe have a few cheats (cheats are basically free on the DS, unlike older systems where it required some more technical skill) and can happily skip out on all the in game text/faq readers, cheat finders and savestates.
A pity really.
The really good stuff is rare and expensive nowadays, possibly stopped being updated if you do only want DS/DS lite*, and most of what is out there is a sea of clones of various capabilities and timebombed (it reads the system date and stops working if it is past a certain point, presumably to have you go buy another $20 cart at they are so cheap) things. There are some things without them and workarounds for them but I would rather skip it all if I can.
*most of the big flash cart makers that were not supercard or acekard stopped updating things when the big flash cart blocking update hit (it would be a while before the console firmwares themselves were hacked to allow it again) and a handful of games dribbled out afterwards. Mostly pokemon conquest, pokemon black/white 2 and some other such things as far as most around here are concerned. That is not to say you can't have a good time with them (find something like an EZ5i on the floor and 95% of the DS library, which is most of the good games, will be fine, can't suggest going and finding one). Whether the AP patch databases will help out here I don't know.
But yeah go see what R4 named things people are suggesting these days (I am way behind current here) that supports Wood and is without timebomb. If there is a legacy cart somewhere someone is selling (selling section here, facebook groups sometimes do well, amazon and ebay are a bit more pricey and you need to know this week's magic words...) then maybe do that. The acekard 2i has a wonderful firmware but build quality leaves a bit to be desired.
Hopefully EZFlash, Supercard, maybe M3/G6, acekard or even Team Cyclops for all I care come back and just make a solid basic flash cart we can suggest for scenarios like this (you are far from the first).