knit-haskell is a beginning attempt at bringing some of the benefits of Rmarkdown to Haskell. It includes an effects stack (using polysemy rather than mtl) which includes logging, a simplified interface to Pandoc and various writer-like effects to intersperse document building with regular code. Also included is a cache (in-memory and persisted to disk) to make caching results of long running computations simple. The cache provides tools for basic dependency tracking. Various helper functions are provided to simplify common operations, making it especially straightforward to build an HTML document from bits of markdown, latex and Lucid or Blaze html. Support is also included for including hvega visualizations and diagrams from the diagrams package. More information is available in the readme.