> ## Content Index
> Fetch the complete content index at: https://lukaspetr.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# A quick reflection on the two years of building Timelines 3
- URL: https://lukaspetr.com/quick-reflection-timelines-3/
- Published: 2022-07-13T17:37:34.000Z
- Updated: 2022-07-13T17:37:34.000Z
- Author: Lukáš Petr
- Tags: #Import 2026-10-28 17:04

I'm delighted, nervous, and excited to say that tomorrow I'll be launching a big 3.0 update of my time tracking app Timelines, which will bring synchronization between devices, a native iPad version, and an independent Apple Watch app.

Building the sync was the most difficult technical challenge that I attempted in my development career so far. But I learned a lot and there were many exciting moments when I managed to solve some obstacles that before seemed too daunting. I’m happy with the way it turned out and confident that it is reliable, and I can’t wait for all Timelines users to have access to it.

I found that walking at the edge of my comfort zone and trying to push it ever so slightly is both terrifying and exhilarating. I want to start doing more of that in life too.

I also found that it’s about perspective. I hope tomorrow goes well. I did the best I could. But in the grand scheme of things, it doesn’t really matter that much - it’s more about the long-term effect of these improvements that I’m interested in and hopeful about.

In the last few days, I also found it’s about acceptance. I wish this had taken me a shorter time. But I’m okay with it taking as much as it did. And I’m excited to be finally at this point, after two years.

I can’t wait for Timelines users to be able to start using this update! You can [follow me on Twitter](https://twitter.com/luksape) for the official announcement (well, tweets.. 😅) tomorrow, or just [download Timelines](https://apps.apple.com/cz/app/timelines-time-tracking/id1112433234) on the App Store and get the update tomorrow automatically.

![header image](https://lukaspetr.com/content/images/2022/07/Timelines-3-0-header-v3-scaled-down-tinified.png)