I have thought through tough problems using pen and paper. Have tried a lot of iterations of digital notebooks, but lost the fluidity and malleability of paper.
These days I have found the iPad + Pencil with an infinite canvas to be the best fit. I use Ahmni (https://www.ahmni.app/) which is a delight.
It did happen in the Muslim world. There are "slave" dynasties in many parts of that world (Egypt, India) which were robust dynasties borne out of freed slaves.
I made a music app for iOS for myself, after not finding anything that did what I wanted as a non-streamer: visualization, audiobooks support, section loops, bookmarks, sleep timers, import from any source, etc.
In the end, I did put it on the App Store (after months of cleanup!) but it's easily the most used app on my phone.
I made a Music app for iOS that is geared towards offline libraries and has features like visualizer, EQ, sleep timer that I couldn't find anywhere else.
I am almost ready with the music app that I have always wanted; a fully featured app for those of us who love to buy and listen to our own collection. Here is an introductory blog post: https://sakunlabs.com/blog/muziqi-intro/
Some of the features I am including in this version:
- import music from the Music app (downloaded locally), from Files app, via a web server
- a music visualizer, with three presets
- waveform views
- mark and store segments of a song
- bookmarks
- an equalizer
and a bunch of smaller features, like pinning music to the Home view, remembering playback for an album or playlist.
Building a successor to https://metaset.io.
My first stab at this problem (a native data visualization app) was OK, but left a lot to be desired in efficient user workflow.
I am having another go at it, this time with Swift Charts and SwiftUI on the Mac.
There has been a resurgence of native editors these days (Helix, Nova, …).
Every time I rush to check if there are vim keybindings. It's a dealbreaker otherwise!
I made Metaset (https://metaset.io) to quickly do visual analysis on data sets. Started from my own needs for a project that spit out large CSV files. Excel or Tableau were too cumbersome and I didn't bother doing pandas and matplotlib.
Later I found someone with a similar need but for Postgres databases. It's been pulling in a decent side income.
I am embarrassed by the amateur UI. There is so much I want to do around "smart" visualization, but haven't had time.
These days I have found the iPad + Pencil with an infinite canvas to be the best fit. I use Ahmni (https://www.ahmni.app/) which is a delight.