Type-safe, concurrent static site generation in Gleam. "Sparkle" — The brilliant clarity of a type-safe BEAM. A generator that brings functional elegance and fault tolerance to your content pipeline.
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Erlang/Elixir developers who want the static typing of ML on the BEAM.
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Systems Architects requiring high-concurrency builds with zero runtime exceptions.
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Teams seeking a modern, user-friendly functional engine that compiles to Erlang, JavaScript, or WASM.
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Accessibility Advocates requiring a concurrent engine that treats BSL/ASL metadata as first-class types.
Gleam’s type system ensures that data flowing through your concurrent build processes is always valid. sparkle-ssg catches template logic errors at compile time, ensuring that the "actor" processes never crash due to unexpected data shapes.
Built on the Erlang VM (BEAM), sparkle-ssg handles massive sites by distributing rendering tasks across light-weight processes. If a single page render fails, the supervisor restarts the task without interrupting the rest of the build.
Content transformations are pure functional pipelines. By leveraging Gleam’s immutable data structures, sparkle-ssg guarantees that your site state is never corrupted by side effects during the synthesis process.
# Install Gleam and Erlang via asdf
just setup
# Build the site with BEAM-level concurrency
just build
# Generate a WASM target for Edge deployment
just build-wasm-
Parallel Synthesis - Native BEAM process management for multi-core scaling.
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Strict Type Inference - No more runtime errors in your template logic.
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Podman-First - Standard containerised toolchain for BEAM-based logic.
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Accessibility - Integrated support for BSL, GSL, ASL, and Makaton.
