Stage Striking App
First of all, make sure you have downloaded the game's basic data and stage icons from the asset downloader.
Whenever you select a game, in the Scoreboard widget, there is a Stages tab. Here, you can select a predefined ruleset from the top (It has all rulesets for the selected game on SmashGG and your own custom rulesets).
On the main widget area, you can also customize your own ruleset and save it using the buttons at the bottom.
On the widget's bottom, you will find a link to access the web-app in a internet browser. This link is your computer's IP in your local network, which means that only devices connected to the same network can access it.
You can now open this link in another device (example: Tablet) and use it. It will update the output data, which you can see in real time on the layout/stage_strike layout.
Optionally, you can set up a short link to this same IP if you need the players to open the page on their own smartphones, in case you don't have a device available for the stream setup. For this you can use any online service such as bit.ly or others.
stage_strike.webm
There is an included layout in layout/ruleset that shows the current configured ruleset.
This layout is intended for printing, but you can also use it to share the ruleset on social media or edit the HTML/CSS to create a more stylized final image.
On Windows, when you first open the program, it asks you for network permissions. If you didn't provide it enough permissions, the program will not be able to host the page and the app will not load from the URL. In that case, you will have to edit your network permissions.
The rulesets are stored in the user_data/rulesets.json file. If you have any issues with rulesets, you can also manually check and edit this file.