Mastodon
Inkstead Writer can publish posts directly to Mastodon.
Required environment variables:
MASTODON_INSTANCE_URLMASTODON_ACCESS_TOKEN
Example:
MASTODON_INSTANCE_URL=https://mastodon.social
MASTODON_ACCESS_TOKEN=...Get An Access Token
On your instance, open Preferences, then Development, then New application. Name it anything you like, give it the write:statuses and write:media scopes, and save. Copy the access token from the application page.
What Gets Posted
Titled posts syndicate as title plus canonical URL. Notes post their text as-is; most instances limit posts to 500 characters.
Photo notes upload attached photos. Inkstead Writer reads your instance's image size limits and prepares photos to fit before uploading, so large originals work without any manual resizing.