Should I vibe code
Presentation builder with smart templates and auto-formatting
Auto-layout for slides is a constraint solver, and constraint solvers are satisfying to write.
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Their verdict, the Pro monthly price and the build-time estimate come from their entry, MIT-licensed. Checked 2026-08-03.
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Our verdict, the regret score and everything below it. Editorial and unsponsored — nobody can pay to be moved.
The honest answer
why the verdict is what it is
The core idea — templates that reflow as you add content — is approachable. The library of templates is the actual product and that is a content problem, not a code one.
What actually breaks
not "if". the specific failures.
- Auto-formatting, which is a constraint solver — 'keep it balanced as content changes' is a layout algorithm, not a stylesheet
- The moment a user wants one thing slightly off-grid, since a system that always looks good is a system that sometimes says no
- Text overflow, where a slide that was designed for four bullets receives nine and has to degrade gracefully rather than break
- PowerPoint export, because that is how decks travel and fidelity across it is unforgiving
- Presenting itself — speaker notes, presenter view, remote clickers, a projector at the wrong aspect ratio
The layouts hold beautifully until someone pastes in a slide's worth of content from an email. Nine bullets where the template assumed four, one of them a sentence long. Your solver does what it was told and shrinks the type until it fits, so the slide is technically balanced and functionally unreadable from three rows back. The user cannot override it, because overriding was the thing you removed to guarantee it always looks good.
Is that you?
the verdict is a default, not a law
- There is a fixed set of layouts and content that does not fit is rejected rather than shrunk
- It generates decks from structured data — reports, updates — rather than serving free-form authoring
- Export is to PDF or HTML rather than PowerPoint
- Auto-layout has no escape hatch and no honest failure mode
- Round-trip PowerPoint editing is expected
- It is used live and you have not tested presenter view and a real projector
- You are matching a general presentation tool feature for feature
If you build it anyway
the checklist, then the prompt that enforces it
- Set minimum type sizes and refuse to go below them. Overflow should say 'this does not fit' rather than shrink to illegible — that is the honest behaviour and the hard one to choose.
- Give every automatic layout a manual escape hatch, even a crude one. Systems with no override get abandoned at the first exception.
- Model layouts as explicit constraints with a solver rather than heuristics that accumulate special cases.
- Export to PDF and HTML first. PowerPoint fidelity is a deep problem and a one-way export is far more achievable than a round trip.
- Test on a real projector at 4:3 and 16:9, with presenter view and a clicker, before calling it done.
- Keep speaker notes as first-class content — they are what makes a deck usable and they are always an afterthought.
Before you build a presentation tool with automatic layout, apply these and push back if I ask you to break them. 1. Tell me that auto-formatting is a constraint solving problem, not styling. Model layouts as explicit constraints — alignment, spacing, balance, minimum sizes — and solve them, rather than accumulating heuristics. 2. Define a minimum readable type size and refuse to go below it. When content does not fit, tell the user it does not fit rather than shrinking until it technically does. Explain that a balanced but illegible slide is the characteristic failure of automatic layout. 3. Provide a manual override for every automatic decision, even a crude one. Systems with no escape hatch are abandoned at the first exception, and there is always an exception. 4. Handle overflow explicitly per layout: split across slides, truncate with a warning, or reject. Pick one per layout and say which. 5. Export to PDF and HTML first. If PowerPoint export is required, treat it as one-way and tell me round-trip editing is not realistic. 6. Make speaker notes first-class from the start, and build a presenter view. 7. Before I use this live, tell me to test on a real projector at both common aspect ratios with a remote clicker. 8. Handle fonts explicitly — embed them or restrict to a set that will render the same everywhere the deck opens. 9. Out of scope unless I ask: collaboration, animation, video embedding, charts from live data.
That one keeps you out of trouble. For the prompt that actually builds it, canivibecodeit.com has one.
their build prompt ↗Or don’t build it
the boring option, and the way back out
$45 a month buys a layout engine tuned over years and the export fidelity that lets a deck travel. Generating decks from structured data you already have is a genuinely good build and skips the free-form authoring problem entirely.
Export to PDF for the artefact and keep the deck's content as structured data separately, so the words survive independently of the layout engine. A deck that only renders inside your solver is a deck that cannot be revised after you stop maintaining it.
Open-source HTML presentation framework; useful rendering layer but not the smart-template
Questions
Why refuse content rather than shrinking it to fit?
Because shrinking hides the problem until the room does. A slide that fits at nine-point type looks fine on the laptop where it was made and is unreadable from the back of the room, which is the only place it matters. Refusing forces the edit while there is still time to make it.
Is PowerPoint export really that hard?
One-way export of simple content is manageable. Round-tripping is not — the format carries a great deal of state, and any feature you cannot represent is silently lost or mangled when someone opens it, edits a word, and sends it back. Treating export as one-way is the honest position.
Every week, someone ships something they shouldn’t have.
New verdicts, the worst thing that landed in the trap, and the occasional incident report. No other email, ever.
Paraphrasing is one API call with a good system prompt behind it.
You are building a thing that reads everything you type. At least this way, you are the one reading.
AI slide generation is a prompt and a template. The output was always going to be disposable.
last reviewed 2026-08-03 · verdict is editorial and unsponsored · shared entry data from canivibecodeit under MIT · not legal advice