Adding a custom language with Shiki crashes

[TheOnlyTails]

Adding a custom language to shiki, i'm getting this error:

Language `Nymph` is not included in this bundle. You may want to load it from external source.
ShikiError: Language `Nymph` is not included in this bundle. You may want to load it from external source.
    at resolveLang (file:///home/theonlytails/IdeaProjects/nymph_lang/node_modules/.pnpm/@[email protected]/node_modules/@shikijs/core/dist/index.mjs:1915:17)
    at file:///home/theonlytails/IdeaProjects/nymph_lang/node_modules/.pnpm/@[email protected]/node_modules/@shikijs/core/dist/index.mjs:1932:52
    at Array.map (<anonymous>)
    at createHighlighter (file:///home/theonlytails/IdeaProjects/nymph_lang/node_modules/.pnpm/@[email protected]/node_modules/@shikijs/core/dist/index.mjs:1932:41)

This is the grammar file: https://gist.github.com/TheOnlyTails/ceadec4e194c5228e0fabad9fd7ae251
I'm just importing it with a type: "json" attribute, casting to any and passing to the languages config field in an array

[brc-dd]

Override the language name to lowercase - https://stackblitz.com/edit/vite-3me9w4sq?file=docs/index.md,docs/.vitepress/config.ts

Case used in fence block is ignored, so both ```Nymph and ```nymph will work fine as long as language.name is in lowercase.

[TheOnlyTails]

Awesome, thank you!
it still doesn't work if I try adding a language alias though...

[brc-dd]

Aliases for custom languages can be defined in the language itself:

    languages: [{ ...nymph, name: 'nymph', aliases: ['foo'] }],

Updated the link above.

[TheOnlyTails]

ah great, thank you!