There is a new application available for Sparkers: Blisk
What is Blisk?
Blisk is the first developer-oriented browser with built-in devices that runs on your desktop and is available for Windows, macOS, and Linux. It provides teams and freelancers with a workspace to develop and test modern web applications twice faster. You can use Blisk as a regular browser to look for something across the web (Browsing mode) or you can use a workspace for web development (Developer Mode).
Installation (Sparky 6 & 7 amd64):
sudo apt update
sudo apt install blisk-browser-stable
Then, I suggest to remove blisk-browser.list which doesn’t provide its public key:
sudo rm /etc/apt/sources.list.d/blisk-browser.list
License: EULA blisk.io/eula