With GBAHawk 2.2.0 released, I added check marks to DKC 2 and Super Metroid GBA.
At the moment there are no remaining runs to check for games that I have carts for, so, I guess that's all for now.
Do you need an authentic Emerald or LeafGreen cart to do testing?
Well as long as the run doesn't save I don't need it, the run should work for any cart as long as no saves or autosaves happen. But otherwise yes I would need one (I don't have one and I'm not willing to pay ~$200 for one to buy it myself, what's with these crazy prices?)
Although with 2.2.0, people can tune runs to their personal carts, so there isn't a need for me in particular to do it, and I think emulation is otherwise accurate enough for a new run to sync on console (of course, testing as you go is recommended.)
Pokemon is probably the last run of interest for console verification, so I'm willing to help in whatever way is needed for it to happen.
Side note: I heard back from Epilogue and they say Mario Kart save loading will be supported in an upcoming software patch, so eventually that one will be done too.
