“I would generally lean towards use off-the-shelf, use open source things like that early on. But with a clear evaluation structure around when you cut over to other things — and a culture that both acknowledges and accepts that it's okay that things may not be congruent over time when you switch.”

Start Off-the-Shelf but Pre-Plan Your Cut-Over Checkpoints Before You Scale

Most companies make the build vs buy decision once and treat it as permanent. Taylor Wells recommends making the decision with pre-agreed checkpoints: if we hit 10M users, we evaluate switching; if costs exceed X, we evaluate building. Disney+ had Adobe as a backup while building Glimpse internally — and within weeks of launch ($1K/day internal vs $33K/day Adobe), could confidently switch. Decision-making frameworks beat reactive pivots.