Hi, I'm Karol.
I've spent a large part of the last decade+ working in open source, mostly around JRuby and the Ruby/JVM ecosystem. My contributions span core runtime work, ActiveRecord JDBC support, OpenSSL compatibility, Rack integration.
I’m especially interested in the edges of software systems: compatibility, upgrades, debugging production behavior, and bridging worlds to fit together perfectly.
I like practical engineering, mature (legacy) systems and software that survives contact with reality. If that overlaps with what you're building, feel free to reach out.
You can buy me a coffee (machine) or two, if you respect my work.
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