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Any[Object]

You use Swift AnyObject wrong. Don't use AnyObject as a generics constraint. Don't do "is AnyObject", "as? AnyObject" to check if a variable is a class type. Don't use "AnyObject". Use "class" for a class-only protocol. Use "Any".…

Swift Runtime Performance - talk

Last week I had my last appearance with talk about Swift runtime performance [https://speakerdeck.com/krzyzanowskim/slow-swift]. I enjoy the topic, and I had a ton of fun with preparing the speech, with the on-stage experience and afterward discussions. Since I'm done with this talk, I'…

Funding (my) OpenSource work

Yes, ObjectivePGP [http://objectivepgp.com] is backed by the organization of a Fortune 500 company founder. We signed a 1-year long grant agreement, two months ago, and I'm delighted with it. What does that mean? That happened. My three years old project got funding. Around May we had…

Selling t-shirt > selling mobile apps. Dinosaurs.

Stop doing the apps. Start selling t-shirts. I spent an enormous amount of time doing apps, or even programs (before we begun to call it apps). I spent days on doing more or less challenging stuff like PGP [https://github.com/krzyzanowskim/ObjectivePGP] implementation or Cryptography [https://github.com/krzyzanowskim/…

Framed faces. The real world status board.

Three weeks ago I got this idea to build something new. The Idea At PSPDFKit [http://www.pspdfkit.com] we use Slack a lot [https://pspdfkit.com/blog/2017/what-cultural-diversity-means-to-us/]. It's in our veins. One of the routines is to check-in whenever one starts work. To do so,…