How I Build a Presentable Deck in 20 Minutes With Gamma
The outline-first workflow that makes Gamma fast instead of merely pretty: 5 minutes of writing, 10 of curating, 5 of polish. No template hunting.
Gamma gets praised for pretty output and criticized for generic output, and both take the same workflow to fix. Twenty minutes, three phases, and the discipline to write before you generate.
Phase one, five minutes, is the outline: one idea per slide in plain text, written in your own words, with the single sentence the audience must remember on each line. Generate from this and Gamma becomes your art director instead of your writer, which is the entire difference between a deck that lands and a deck that reads like a machine summarized Wikipedia.
Phase two, ten minutes, is curation. Let it generate all slides at once, then judge like an editor: fix claims it invented, delete slides that repeat the point, and reorder until the story has one spine. I almost always cut two slides and merge one pair; decks that survive curation feel authored.
Phase three, five minutes, is the polish pass on the three slides that matter most, usually the opener, the data slide, and the ask. Drop in your real chart instead of the generated one, replace one stock image with something from the actual product, and check the numbers twice.
The result is not a keynote; it is a presentable deck in twenty minutes that does not embarrass you in front of clients. For everything below board-meeting stakes, that trade, twenty minutes for eighty percent quality, is the best deal in the presentation world right now.