Frontend: Apple & Google Wallet support

[SheepTester]

TreeHacks lets you add your checkin QR code to your wallet, which is pretty cool

• Apple Wallet

  Apple Wallet is surprisingly pleasant to work with. The frontend just needs to download a .pkpass file, which is just a .zip file.

• Google Wallet

  Google Wallet is a bit more of a pain since you have to use their API and need to request approval for publishing access. Fortunately, it seems [email protected] already has set up some passes in the past, so we might not need to go through the process again.

  After that, we just need to encode a JSON object (with a Next.JS server action because it signing with a private key) to add it to Google Wallet.