Here's a remainder no 85,234,567 as to why you shouldn't base your business around a product that depends on:
b.) Build your business around consuming 3rd party APIs (and maybe presenting them differently), thus being susceptible to the whims of all the parties you depend on. Encroach on their territory with a better product and THEY WILL shut you down.
@ondra Yeah, apparently they made some progress on PWAs with the latest iOS release, but it's clear as day that #Apple doesn't want an escape hatch out of its AppStore and is willing to stagnate Safari in order to do it, because it knows it has enough marketshare for devs to just submit to its whims.
The restriction on not allowing alternative rendering engines also means that #Firefox is super crippled compared to its Android version, further disincentivizing users to switch from Safari.
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