Hey, so it looks like you're basically just bundling up various other decks into one. What raises an eyebrow for me is that the credits don't actually, well, credit any of the people whose decks you've borrowed from. Which seems a bit uncool
It's a bit unclear what the purpose is. Some of these tools don't really make sense accessed through this sort of interface. Like, PublicTransit (which is an out-of-date version here) isn't particularly useful as a tool that you'd access through a menu like this, the point is more to use the transitions in your own work. And Data Pipes is really more of a proof of concept rather than a tool, I'd say. And including the WigglyKit library is, again, odd, since that's more of a component for someone's own decks rather than a tool in its own right. Ditto for the fonts preview, there's not much benefit in just viewing them.
Additionally, it seems that a lot of the tools have broken when they were copied into your deck. Valentine-er doesn't seem to actually generate the card in the end. I'm guessing there were some bits you didn't copy or maybe the card arrangement made things messy? The link to data pipes doesn't even go to the right place, it goes to the spirograph card! Before asking other people to test, it might be a good idea to test yourself.
I'm not really sure what you're trying to achieve here. You're basically bundling together broken and outdated tools in a context that doesn't really make sense. I feel like it would make more sense, if you want access to various decker resources, to link to the live versions from the original creators rather than haphazardly bundling a bunch of cards together in a broken fashion.
Edit: I feel I should also point out that a couple of the art pieces included in the valentine-er app are ones I made, and like I gave IJ permission to use them in valentine-er but I don't seem to recall being asked by you if you could include them here so that's really not cool tbh.