x-accel
The tool I use to plan, draft, score, schedule, and learn from posts on X. Same engine grew an anonymized account 22.7x in 90 days. Public SaaS at hgxaccel.com.
Why x-accel exists.
What x-accel replaced, and what it does for me now. The internal dashboards stay private, so this is the public version of it.
Here's a summary of this page by my AI Avatar
How this system moves work.

A content growth loop that drafts, scores, schedules, publishes, watches results, and feeds the next round.
Audience growth is hard because the work is repetitive and the learning loop is easy to lose.
What it does
Drafts using context the model actually has (past posts, what landed, what didn't). Scores drafts before they go out. Schedules and posts. Watches what hits and feeds that back into the next round.
The growth case study
I can't name the account. The numbers are real: 22.7x in followers, 383K impressions in a 90-day window. Most of it came from the second half of that window, after the scoring loop had enough signal to be useful.