Goto the URL opera://flags/#sidebar-site-panel, enable the flag, restart Opera, click the 3 dots at the bottom of the sidebar, scroll down to "Custom Site Panels" and add the URL for the site (whatever URL you get after logging into https://esound.app/ in a tab I assume). Then, you'll have eSound as a separate panel. It won't be added to the player panel, but should work fine as its own panel. Source: about 2 years ago
Do you know an article comparing eSound to other products?
Suggest a link to a post with product alternatives.
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