posse_post

POSSE Post implements the POSSE (Publish on your Own Site, Syndicate Elsewhere) philosophy for Drupal. It automatically crossposts your Drupal nodes to social media when they are published, keeping your own site as the canonical home for your content.

Features

• Crossposts nodes to Bluesky, Mastodon, Facebook, Instagram, and LinkedIn on publish
• Credentials stored as environment variables, not in the database or exported config
• Per-account field mapping, format strings, character limit truncation, and URL appending
• Optional CamelCase hashtags generated from taxonomy terms
• A SEND_CROSSPOSTS environment variable guards against accidental posting from dev or staging
• Crosspost status tracking (pending, published, failed) with manual retry and immediate publish options

Documentation

Full documentation lives at project.pages.drupalcode.org/posse_post, including:

• Configuration — global settings, social accounts, and field mapping
• Platform setup guides for Bluesky, Facebook, Instagram, LinkedIn, and Mastodon
• Hosting — Pantheon Secrets Manager and other host-specific credential storage
• Troubleshooting

Post-Installation

1. Go to Configuration › Web services › POSSE Post › Social Accounts and add an account for each platform you want to crosspost to.
2. The account form shows the exact environment variable names to set for that platform's credentials. See the documentation for how to obtain them.
3. Set SEND_CROSSPOSTS=1 in your production environment to enable sending. Crossposts are processed on the next cron run, or you can publish them immediately from the admin UI.

Additional Requirements

• API credentials for each target platform (see the platform setup guides in the documentation)

Recommended modules/libraries

• vlucas/phpdotenv — load credentials from a .env file in your project root instead of setting server environment variables manually

Similar projects

• Social Post: a framework for social network integrations with separate sub-modules per platform; most platform sub-modules have not been updated recently.
• POSSE: a similar approach targeting Drupal 8 with no release since 2021.
• MPOSSE: Microblog Publish on your Own Site, Syndicate Elsewhere. It provides an integration layer between Drutopia Microblog and other modules.

POSSE Post is a self-contained alternative with no third-party Drupal module dependencies and active maintenance.

Supporting this Module

File bugs and feature requests in the issue queue. Patches and merge requests are welcome.