Append Only LLC

Software consulting by Erik Shafer — .NET engineer focused on event sourcing, distributed systems, and the JasperFx / Critter Stack ecosystem.

I help teams build reliable, well-architected software. If you're working with Marten, Wolverine, or event-driven systems in .NET, we've probably solved similar problems.

• Work — open source, talks, and community projects
• Blog — writing on event sourcing, .NET, and software design
• About — background and how to get in touch