The specification is only 3 lines long. Yet it doesn't work — Calling a local app from a browser extension

Browser extensions live inside a box.They can touch the page's DOM. They can peek at network traffic. They can have storage. But they cannot "launch an app installed on this PC." That would be a major ...
shattered.io

Steam Deck October Update: 64-Bit Client, 96 Fixes [2026]

Valve ships a 64-bit Steam Runtime container client and 96 changes across Steam Deck in October 2026, from Big Art Mode to ...