[[making plugins#Filters|Filter plugins]] are plugins that filter out content based off of certain criteria. By default, Quartz uses the `Plugin.RemoveDrafts` plugin which filters out any note that has `draft: true` in the frontmatter.
If you'd like to only publish a select number of notes, you can instead use `Plugin.ExplicitPublish` which will filter out all notes except for any that have `publish: true` in the frontmatter.
This is a field in `quartz.config.ts` under the main [[configuration]] which allows you to specify a list of patterns to effectively exclude from parsing all together. Any valid [glob](https://github.com/mrmlnc/fast-glob#pattern-syntax) pattern works here.
Common examples include:
-`some/folder`: exclude the entire of `some/folder`
-`*.md`: exclude all files with a `.md` extension
-`!*.md` exclude all files that _don't_ have a `.md` extension
-`**/private`: exclude any files or folders named `private` at any level of nesting
> Marking something as private via either a plugin or through the `ignorePatterns` pattern will only prevent a page from being included in the final built site. If your GitHub repository is public, also be sure to include an ignore for those in the `.gitignore` of your Quartz. See the `git` [documentation](https://git-scm.com/docs/gitignore#_pattern_format) for more information.
