According to the documentation, a custom callback can be passed to the `Encore.configureFontRule()` and `Encore.configureImageRule()` functions: https://github.com/symfony/webpack-encore/blob/main/index.js#L1457. However, when using this callback to specify a custom generator, the `filename` option of the generator seems to get ignored: ```js Encore .configureFontRule(rule => { rule.test = fontFileExtensionRegex; rule.generator = { filename: 'whatever/path/[name][ext]', }; }); ``` The issue seems to be this default `filename` option: https://github.com/symfony/webpack-encore/blob/main/lib/WebpackConfig.js#L78. Using the same example, explicitly setting `filename` to `global.undefined` in the regular options seems to fix the issue: ```js Encore .configureFontRule( { filename: global.undefined, }, rule => { rule.test = fontFileExtensionRegex; rule.generator = { filename: 'whatever/path/[name][ext]', }; }, ); ```