Automate short-video processing with Submagic, n8n and Drive

Define the source video and the folder handoff

Luke’s August 2025 tutorial links Google Drive, n8n and Submagic’s API for automated short-form editing. HeyGen is optional for generating the source material. The useful scope is the processing chain: a source video enters the workflow and a finished edit returns. The description’s viral language does not establish audience performance.

1. Open https://submagic.co/?via=luke and identify the Drive folders and source video for a small test. If using the retained hosting route, it is https://hostinger.com/AILUKE; check current plan and coupon terms separately.
2. Keep the source file identifiable and define the required edit, including subtitle language, formatting and any visual treatment. Decide where the output should be saved before connecting the steps.

Connect the API and inspect the workflow state

The sequence sets up Submagic’s API at 2:57, Drive at 4:40 and automation from 6:59. API credentials, folder access and completion notifications serve different parts of the process. A successful submission should not be confused with an edit that has finished rendering.

1. Follow the recorded credential and webhook setup, then process one permitted test file. Inspect the returned job information and the workflow state before attempting another submission.
2. Follow the completion path and locate the output associated with that same source. Compare the stored link or file with the job record and check that a retry does not silently produce an unrelated or duplicate result.

Customise the template and watch the actual edit

Template and API customisation appear at 13:56, with results at 19:00. A reusable editing template should make the intended style repeatable while leaving content checks visible. Correctly configured automation can still produce a subtitle error or a visual that does not fit the sentence.

1. Watch the full output with audio and inspect captions, cuts, timing and cutaway visuals. Compare names and technical terms with the source narration and note a specific correction where needed.
2. Update the template or relevant input and rerun the small example. Keep the original and revised files together, checking the actual destination before expanding the workflow to more source videos.

The takeaway

Validate the entire file handoff and the edit itself. A repeatable API workflow is useful when the right source produces a reviewed final file at the intended destination.