openleetcode - we have democratized the LeetCode tests

openleetcode is a local LeetCode runner built around open test suites, made in Haskell. It takes a normal solution file, finds the matching problem manifest, builds a tiny language-specific harness, sends it to a pluggable execution backend, and judges the result locally. The tests live in the repo. The runtime templates live in the repo. The CLI is just the glue.