hb-appstore VS NX-Update-Checker

Do not use Retroarch, instead use MelonDS (you can find it in the homebrew store or here) and enable ARM Jit Recompiler. It should work fine, but I had some text troubles when I tried Mario & Luigi Partners in Time and I suggest to install switchroot Android to use emulators there

install the homebrew appstore GITHUB - HB APPSTORE if you haven't already. Try the emulators. Retroarch, Tesla for system information overlays, Daybreak for updating firmware, 90DNS to test if you are properly blocking the Nintendo servers. FTPD for FTP. NUT (Windows app) for Tinfoil, makes USB transfers easy. Especially useful if you need to convert XCI to NSP. Once you get bored. Install Android.

Homebrew app store - you can install many homebrews like retroarch, goldleaf, incognito, themes and more

It's better to just Google the app your after and get it off their GitHub so you know the apps are updated for example if you want tinfoil Google tinfoil and then copy all the apps you want into your switch folder this will put them all in the album. But here is the nro for the Hb store https://github.com/fortheusers/hb-appstore/releases

wiiu.hacks.guide and an app on the homebrew appstore that I forget the name of, i think it's called am64ds patcher?

The guide isn't meant to give you homebrew applications, only the required ones. I would recommend getting the homebrew appstore to easilly get any app you want (including tinfoil). You can get it from https://github.com/fortheusers/hb-appstore/releases and you have to just put it in the "Switch" folder in your sd card. From there just open hombrew menu and it will be there

You can find the appstore here -- https://github.com/fortheusers/hb-appstore/releases. As it says, this is one of those that wants to be in its own folder, so sdmc:\switch\appstore\appstore.nro.

It sounds like you are new to Wii U hacking, so I recommend that you use wiiu.hacks.guide to homebrew your Wii U if it isn't homebrewed already. If it is, I recommend you get the Homebrew AppStore (if you don't know how to install it, look here). That way if you have a question like this again, you can check there first or use Google before asking us.

Try downloading a fresh copy of the homebrew app store and replacing the one in your "switch" folder on the SD card. Make sure your time and date are correct on the switch

There's almost* nothing wrong with the Switch modding scene on 15.0.1, save for a couple very minor edge cases that in the scheme of things are nothingburgers (coming to mind most readily is the fact that NX-Update-Checker will crash if you run it while docked unless you have the log flag set. Why? Nobody knows.).

NX-Update-Checker - a handy utility for checking which installed games need updates

NX-Update-Checker This allows you to quickly check which of your installed games have available updates, as opposed to needing to go through them one-by-one.

Yes, actually! No Tinfoil required: https://github.com/16BitWonder/NX-Update-Checker

The NX-Update-Checker homebrew is exactly what you need.

NX Update Checker to very quickly scan for game updates so I don't have to hunt through each of my games