Emacs
Org2 files are plain Org-shaped text, so Emacs can edit them today. There is not yet a dedicated Org2 Emacs package in this repository.
Use org-mode for editing
For basic editing, associate .org2 files with org-mode:
(add-to-list 'auto-mode-alist '("\\.org2\\'" . org-mode))
That gives you mature Org editing, outline navigation, folding, timestamps, TODO keywords, and tables while Org2 continues to own the standalone parser, CLI, publishing, and compiler semantics.
Use the CLI beside Emacs
Run Org2 commands from a shell, compile, async-shell-command, or your own Emacs wrapper:
org2 agenda --dir ~/notes --recursive
org2 fmt --dir ~/notes --recursive --check
org2 lint --dir ~/notes --recursive
org2 publish docs-site --config org2.json
Mutating commands preview by default and require --apply to write files, which makes them reasonable to wire into custom Emacs commands once you are comfortable with the output.
Coexistence notes
Existing
.orgfiles can remain in place; Org2 can scan.organd.org2files.Org2 is not a bug-for-bug Org Mode clone. It keeps common Org-shaped constructs but chooses clearer behavior where portability needs it.
Org Mode may treat newer Org2 conventions, such as fenced source-block sugar or compiler/provenance properties, as ordinary text. Org2 tools still parse them.
If you rely on advanced Org Mode packages, keep using them; Org2 can act as a parallel compiler/runtime over the same text where the semantics overlap.
Current status
Dedicated Emacs integration is still open work. Useful future pieces would include CLI command wrappers, LSP setup, agenda buffers backed by org2 agenda --format json, and helpers for roam IDs/backlinks.