This is a fun idea for classic games. DOS_deck is a website where you can go and play some classic DOS games right in the browser with an interface much like the Steam Deck / Steam Big Picture Mode. Clever stuff making use of DOSBox thanks to JS-DOS, allowing it to run games in a browser.
DOS_deck takes it a step further though wrapping it up in a cozy interface and brings with it controller support, automatic game saving when you quit, a virtual keyboard when you need it and of course cross-platform support since you can play it almost anywhere.
It's quite limited in the selection of available titles though, since they can only put up games that are verified to be either Shareware, Freeware, Demos or games that were made public domain.
Love ideas like this. Hopefully they will be able to keep on expanding it to include many more games.
Check it out on DOS_deck.