[what]

You could just install one of those chain things so the door won’t open more than inch. The toddler isn’t tall enough to reach it. There’s non chain ones too, you see them in hotels, a little metal thing you flap open.

[kriskrunch]

Thanks. The front door is a wood grain textured fiberglass double door, so I want to avoid drilling into the door face. It's an interesting challenge.

Trying two of these between the levers for now: https://www.amazon.com/U-Shaped-Proofing-Cabinets-Adjustable...

Plus, I found this, hoping it will work for me without too much damage to the door: https://www.snappower.com/pages/huglock

[Terr_]

That would certainly be an easy off-the-shelf solution... Although if the door opens a crack, that also means a reckless toddler (is there any other kind?) could slam it on their own fingers.

There are some which are just hinged metal that can lock at a right-angle, one of those would give tighter no-finger-gap tolerances, while also being structurally weaker in case of emergency.

[ramses0]

https://www.homedepot.com/pep/Prime-Line-1-3-8-in-Door-Lock-...

[Terr_]

Yep, those thingies. They're also easier to remove afterwards without too much door-scarring, since the contact-portion is on the inside frame.