Penpot, an open-source alternative to Figma, has raised $8 million in funding after seeing a significant increase in sign-ups following Adobe's announcement to acquire Figma for $20 billion. Penpot's platform is designed to bring designers and developers together, using open-source technology to facilitate collaboration. The company plans to use the funding to accelerate its growth and development. Penpot's CEO emphasizes the importance of open-source technology in allowing developers to hack, self-host, and tweak the platform to meet their needs.