You can export your library of saved ideas as Markdown files:
Go to your Profile, open the Settings menu and tap on Export Library
You will receive an email with a download link to a zip file that contains all your ideas. The ideas are grouped into folders, with one folder for each stash.
After you export your library as Markdown files, you can view and edit them locally with any text editor or you can import them into apps such as Notion and Obsidian.