Install the local launcher, then run thinkrail to open the browser UI.
macOS, Linux, WSL
curl -fsSL https://raw.githubusercontent.com/JetBrains/thinkrail/main/install.sh | bash
Windows PowerShell
irm https://raw.githubusercontent.com/JetBrains/thinkrail/main/install.ps1 | iex
Command Prompt
powershell -c "irm https://raw.githubusercontent.com/JetBrains/thinkrail/main/install.ps1 | iex"