Yes. emo check runs the checks, lint, golden tests and a cost estimate, inside your own CI, signed in with an organization's machine token. A reusable GitHub Actions workflow, in preview, runs emo check in your own CI; it needs the emo command line, which is not released yet. That suits teams that prefer not to install apps on their organization, or that want the checks next to their other jobs. The GitHub App, which runs them without a workflow, is planned.
The emo command line also lets you run any check from another CI system, because every action is a command you can call with JSON parameters. The results show up as checks on the pull request.
See the GitHub checks docs and the tutorial preview for the checks themselves and how they gate a deploy.