Ruben is the founder of Windmill https://www.windmill.dev/ which helps you turn scripts into workflows and UIs in minutes 

Some of the things we talk about:

• Getting to the threshold of being useful.
• Speed is the key to success.
• The second mover advantage
• Getting early users of the product.
• Why infra is an interesting market for him.
• The challenges of being a solo founder.
• The recipe for a digital startup is to be really passionate about the project.
• Advice for founders who are building ambitious projects.
• Doing everything that no one wants to do.

You can find Ruben at https://twitter.com/rubenfiszel