migration & setup

9 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Mantine is not compatible with Astro

Astro does not support React context, which is required for Mantine to work. Mantine cannot be used as a component library in Astro projects because Astro is designed to minimize JavaScript and does not support context providers needed by Mantine.

Alternative frameworks for Mantine with static site generation

If you need both Mantine and a static site generator, use Next.js or Gatsby instead of Astro. Both support all React features required for Mantine to work.

Create React App deprecation and Mantine support

Create React App was deprecated in early 2023 and is not recommended for new projects. Starting from Mantine version 7.0, some styling features are not officially supported in Create React App. Vite or Next.js are recommended alternatives.

Using Mantine with CRA without postcss-preset-mantine

To use Mantine with Create React App without postcss-preset-mantine, write styles in plain CSS without using the postcss-preset-mantine features like rem/em functions, CSS nesting, @mixin directives, and light-dark functions.

CSS nesting replacement for Create React App

Create React App does not support CSS nesting with postcss-preset-mantine. Instead of nesting @media queries inside selectors, write them separately. For example, nest media queries outside the main selector rather than inside it.

Eject Create React App for postcss-preset-mantine support

To use postcss-preset-mantine with Create React App, eject the application using npm run eject, then install postcss, postcss-preset-mantine, @mantine/core, and @mantine/hooks dependencies.

postcss.config.js configuration for ejected CRA

After ejecting Create React App, create a postcss.config.js file in the project root with the following plugins: postcss-preset-mantine, postcss-flexbugs-fixes, postcss-preset-env, and postcss-normalize.

postcss-loader configuration for ejected CRA

After ejecting Create React App, replace the postcss-loader configuration in config/webpack.config.js with: { loader: require.resolve("postcss-loader"), options: { postcssOptions: { ident: "postcss", }, sourceMap: isEnvProduction ? shouldUseSourceMap : isEnvDevelopment, } }

Ejected CRA with Mantine example repository

An example repository with a fully set up ejected Create React App and Mantine 7 configuration is available at https://github.com/rtivital/cra-mantine-7.

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