Accepted player card · Rank #18

@j-mie6

Jamie Willis

80.3Tier A

Category breakdown

rating-rubric/3

Consistency

86

The supplied repositories show substantial recent activity across 2025 and 2026, with multiple related projects updated over time and no archived entries in the listed set.

Impact

84

The portfolio centers on parser combinators and related tooling across Scala and Haskell, suggesting a distinctive and technically ambitious body of work with a coherent ecosystem.

Quality

78

Repository metadata supports strong signals from several non-fork projects, sustained activity, and specialized project clustering, but implementation quality and maturity details are unavailable.

Breadth

64

Meaningful variety is present across Scala and Haskell, including core libraries, integrations, debugging tools, and design-oriented work, though the overall focus is intentionally specialized.

Depth

88

Repeated ownership of related parser projects across years, including core libraries and companion tooling, indicates sustained specialization and substantial continuity.

Community

58

Available community signals are a modest positive tie-breaker, with some repositories receiving notable interest; popularity is not used to raise the other category scores.

Contribution activity

365 day window

Playful reviews

Parser empire

You named the centerpiece parsley and then built enough surrounding infrastructure to make the herb aisle look like a compiler department.

Bilingual parsing

When one language was not enough to explain your parser obsession, you translated it into Haskell and kept going.

Pattern library energy

Most people collect design patterns; you turned parser-combinator patterns into their own research annex.

Debugging the debugger

A dedicated parser debug app suggests the parsing machinery is important enough to deserve its own observatory—and possibly its own weather forecast.

View from the fork

The debug views project completes the classic toolchain arc: build the parser, build the debugger, then give the debugger a window seat.

Repository highlights

j-mie6/oregano

73

An actively maintained Scala project within the portfolio's parser-focused ecosystem.

Scala10 stars

j-mie6/parsley

86

A prominent, actively updated Scala parser project that appears to be a central portfolio work.

Scala219 stars

j-mie6/parsleyhaskell

78

A substantial Haskell counterpart in the same parser-combinator area, showing cross-language ownership.

Haskell63 stars

j-mie6/design-patterns-for-parser-combinators

68

A focused Haskell project on parser-combinator design patterns, with long-term evidence of maintenance.

Haskell46 stars

j-mie6/gigaparsec

72

An actively updated Haskell parsing project that broadens the parser-focused body of work.

Haskell23 stars

j-mie6/parsley-cats

65

A Scala integration project connected to the main parser ecosystem and updated recently.

Scala14 stars

j-mie6/parsley-debug-app

62

A recently updated Scala debugging application supporting the broader parser-tooling theme.

Scala12 stars

j-mie6/parsley-debug-views

48

A forked Scala debugging-view project with recent activity, but ownership signals are less clear from metadata alone.

Scala3 stars

j-mie6/laika

42

A recently updated Scala fork related to the surrounding ecosystem; the fork status limits attribution confidence.

Scala0 stars

j-mie6/tapir

42

A recently updated Scala fork, useful as ecosystem context but not strong standalone evidence of original ownership.

Scala0 stars

j-mie6/scala-native

42

A recently updated Scala fork that indicates engagement with a broader ecosystem, with limited ownership evidence.

Scala0 stars

j-mie6/reference-threads

55

A Haskell reference project maintained within the broader language and parsing-oriented portfolio.

Haskell1 stars