Today on Twitter, Pixel Vision 8 - a highly configurable and fully featured virtual console, announced that it would be free, including the pro tools during the current health crisis.
From the Pixel Vision twitter:
Pixel Vision 8 is available here, simply register an account and you can download Pixel Vision as well as all of the premium pro features. You can learn more about PV8 and see it in action in the video below. If you check out Pixel Vision 8, be sure to stop by Twitter and thank developer Jesse Freeman for his generosity during these trying times!