1: Open an Admin PowerShell and run: npm i -g --production windows-build-tools.
2: Download the SteamWorks SDK from here.
3: Extract it to any folder and run this in the PowerShell window: $env:STEAMWORKS_SDK_PATH="Your/Extracted/Path" replacing with the path of the extracted SDK.
4: Run npm i.
5: Run npm run dev.
1: Download the SteamWorks SDK from here.
2: Extract it to any folder and run this in the Terminal window: STEAMWORKS_SDK_PATH=Your/Path/Here followed up by export STEAMWORKS_SDK_PATH.
3: Run npm i.
4: Run npm run dev.