Doing professional software projects since the last millennium

Delivering products with planning and passion.
Shaping projects to raise teams and create business value.
Bridging the gap between business and delivery.
Structuring software from business domain to fitting technologies.
Securing vendor proposals that match your needs.
Still loving it.
Currently with Haeger Consulting
One of the most needed books on leadership I've read.
Nobody should leave high school without having read this book.
The original (well, not quite, but) productivity guide – at least for my generation.
These two were absolutely relevant on my journey from developer to software product guy.
Old classic, but helped me think differently about management and how companies work.
This book has shaped my view of software development from early on. I still find that much of what I do and think is influenced by it.
Using it since 2013. Right now north of 100.000 mails in my inboxes. Superfast search. I hope to use this program for as long as e-mail exists. One time payment possible, but subscription supported. Used with dovecot as local IMAP archive.
I used Ominfocus, Things, Todoist. Everyone of them with much joy. But GoodTask makes my nerd heart happy in a special way: The unpolished (but powerful) UI, using Apple Reminders as database, and the explicit planning of the day. One time payment.
readwise.io is a quote manager which integrates with Kindle, the web and (via reader) with RSS, Newsletters, etc. It revived my Kindle highlights by sending me some of my +5000 Kindle highlights to my inbox to review, reject and indgest them. They support export of quotes, e.g. to Notion or Obsidian and others. Subscription.
The best wiki collaboration tool for private use. I especially love that they have database entries with typed fields and relations and not just documents. Subscription.
Install apps on macOS from the CLI. No idea how people can live without it. Free.