A couple of days ago, Jason Scott (https://twitter.com/textfiles) announced (https://twitter.com/textfiles/status/1197640628248686592):
QuoteI'm reaching out to fans of both the Amstrad CPC and doing tedious QA testing of Amstrad CPC emulations to build a library of them running on @internetarchive (https://twitter.com/internetarchive). If you want in, ping me. Otherwise, see you soon.
— https://twitter.com/textfiles/status/1197640628248686592 (https://twitter.com/textfiles/status/1197640628248686592)
The in-browser playable collection is looking pretty decent: Software Library: Amstrad CPC (https://archive.org/details/softwarelibrary_cpc?sort=titleSorter). These are all running under MAME compiled to WASM and delivered to your browser.
If your favourite title doesn't load, we probably haven't got to QA'ing it yet.
If you'd like to help with said QA process the Amstrad Discord (run by me) has a channel dedicated to it
https://discord.gg/4QZqfCr (https://discord.gg/4QZqfCr) << Link there to join