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added documentation on how to build wasm packages in the docker container #3032

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added documentation on how to build wasm packages in the docker container #3032

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Update README.md
b521f771d8991e6f1d8e65ae05a8d783 Aug 8, 2025
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b521f771d8991e6f1d8e65ae05a8d783 Aug 8, 2025
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2 changes: 2 additions & 0 deletions README.md
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Expand Up @@ -188,6 +188,8 @@ Scryer Prolog has basic WebAssembly support. You can follow `wasm-pack`'s [offic

However, none of the [default features](https://doc.rust-lang.org/cargo/reference/features.html#the-default-feature) are currently supported. The preferred way of disabling them is passing [extra options](https://rustwasm.github.io/wasm-pack/book/commands/build.html#extra-options) to `wasm-pack`.

Please note: Building can fail if there is not enough RAM (rustc will exit with "(signal: 9, SIGKILL: kill)", [see more](https://github.com/mthom/scryer-prolog/issues/3028)). This can be an issue, e.g. while building in a Docker container. Please make sure there is enough RAM by increasing the memory available for the docker process to e.g. 16 GB ([documentation](https://docs.docker.com/engine/containers/resource_constraints/)).

For example, if you want a minimal working package without using any bundler like `webpack`, you can do this:
```
wasm-pack build --target web -- --no-default-features
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