i want to ask about compability with old browser and hoping load with html only but im confused what i must do.

and i want to ask too about build official carbonio ui on github on

https://github.com/zextras/carbonio-shell-ui

i was installed nodejs and after i execute npm run build show like this

Failed to load ./.env.
node:internal/crypto/hash:68
this = new _Hash(algorithm, xofLen);
^

Error: error:0308010C:digital envelope routines::unsupported
at new Hash (node:internal/crypto/hash:68:19)
at Object.createHash (node:crypto:138:10)
at BulkUpdateDecorator.hashFactory (D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\util\createHash.js:144:18)
at BulkUpdateDecorator.update (D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\util\createHash.js:46:50)
at SourceMapSource.updateHash (D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack-sources\lib\SourceMapSource.js:233:8)
at NormalModule._initBuildHash (D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\NormalModule.js:753:17)
at handleParseResult (D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\NormalModule.js:817:10)
at D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\NormalModule.js:908:4
at processResult (D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\NormalModule.js:640:11)
at D:\ssd\Desktop\carbonio-login-ui\node_modules\webpack\lib\NormalModule.js:692:5
at D:\ssd\Desktop\carbonio-login-ui\node_modules\loader-runner\lib\LoaderRunner.js:407:3
at iterateNormalLoaders (D:\ssd\Desktop\carbonio-login-ui\node_modules\loader-runner\lib\LoaderRunner.js:233:10)
at iterateNormalLoaders (D:\ssd\Desktop\carbonio-login-ui\node_modules\loader-runner\lib\LoaderRunner.js:240:10)
at D:\ssd\Desktop\carbonio-login-ui\node_modules\loader-runner\lib\LoaderRunner.js:255:3
at context.callback (D:\ssd\Desktop\carbonio-login-ui\node_modules\loader-runner\lib\LoaderRunner.js:124:13)
at D:\ssd\Desktop\carbonio-login-ui\node_modules\babel-loader\lib\index.js:59:71 {
opensslErrorStack: ,
library: 'digital envelope routines',
reason: 'unsupported',
code: 'ERR_OSSL_EVP_UNSUPPORTED'
}

Node.js v20.11.1

how to build corectly?