Does not work with Fastify

[glappsi]

Describe the bug

Getting "TypeError: Cannot set properties of undefined (setting 't')" since there is no app.locals in onModuleInit (using pug).

Reproduction

• Setup NestJS w fastify: https://docs.nestjs.com/techniques/performance
• Add nestjs-i18n
• Enable rendering in bootstrap fn:

  app.useStaticAssets({ root: join(__dirname, 'public') });
  app.setViewEngine({
  engine: {
    pug: require('pug'),
  },
  templates: join(__dirname, 'views'),
  });

System Info

not needed

Used Package Manager

npm

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [X] Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• [X] The provided reproduction is a minimal reproducible of the bug.

[rubiin]

small repro would be nice

[glappsi]

small repro would be nice

How? A whole repo is needed, it's not just specific lines of code to cause this. Edited my question to be more specific.