remark-mermaid react 19

[amorey]

I'm getting an "unmet peer" dependency warning from remark-mermaid when I install the latest version of Nextra with React 19:

 WARN  Issues with peer dependencies found
.
└─┬ nextra 4.2.1
  └─┬ @theguild/remark-mermaid 0.2.0
    └── ✕ unmet peer react@^18.2.0: found 19.0.0

Also, I tried to submit a patch but I'm getting this error when I run the test suite with a clean version of the main branch:

pnpm test       

> the-guild-docs-monorepo@ test /XXX
> vitest


 DEV  v2.1.8 /XXX

 ✓ packages/og-image/src/handler.test.ts (3) 1477ms
 ❯ packages/remark-mermaid/src/index.test.ts (0)
 ❯ packages/remark-npm2yarn/__tests__/plugin.test.ts (0)

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Failed Suites 2 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

 FAIL  packages/remark-mermaid/src/index.test.ts [ packages/remark-mermaid/src/index.test.ts ]
 FAIL  packages/remark-npm2yarn/__tests__/plugin.test.ts [ packages/remark-npm2yarn/__tests__/plugin.test.ts ]
Error: Cannot find module '/XXX/node_modules/.pnpm/nextra@4.0.5_acorn@8.14.0_next@15.1.5_@babel+core@7.26.0_react-dom@18.3.1_react@18.3.1__react_z4ibmhfxhzjcbx27twdo2pbsoq/node_modules/@theguild/remark-mermaid/dist/index.js' imported from /XXX/node_modules/.pnpm/nextra@4.0.5_acorn@8.14.0_next@15.1.5_@babel+core@7.26.0_react-dom@18.3.1_react@18.3.1__react_z4ibmhfxhzjcbx27twdo2pbsoq/node_modules/nextra/dist/server/compile.js
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/2]⎯

 Test Files  2 failed | 1 passed (3)
      Tests  3 passed (3)
   Start at  16:21:15
   Duration  1.79s (transform 78ms, setup 74ms, collect 133ms, tests 1.48s, environment 0ms, prepare 113ms)

[renebrandel]

Running into the same issue when integrating with fumadocs as well. Any follow-up on this?

[dimaMachina]

feel free to send a pr

[amorey]

#2039