Category: learning

This is a blog post about an app, there are many of them but this is mine. How I made a swift app in Xcode but took the long way ’round to get there. And an even longer post to tell the story.

I recently posted about some scripts I released on github to help other admins using Archiware P5 archive software to manage their servers and the data in the archive vault.

Using free credits in various AI tools will get you pretty far, but how far, really? Can you make an app? A useful app? Maybe, yes. Encouraged to transform some simple shell script projects and make a “proper” swift / swiftUI based Mac app I started using Claude as a test. The result is two apps for checking Archiware P5’s archive with a drag and drop tool that verifies files with local or remote servers. Code and apps on GitHub.

# Path to nsdchat
chatcmd="/usr/local/aw/bin/nsdchat -c"

Working with Microsoft’s Visual Studio Code app with co-pilot (tied to my GitHub account) and occasional ChatGPT coding sessions, when co-pilot ran out of free credits, I was surprised that I made a lot of progress on some more complicated scripts.

It all started with shell scripts to help me automate some tasks with managing data and eventually I wanted to create a Mac app (or two) for my clients and me to use. I like scripts, but I have so many. And solving a problem in terminal and sifting through all those amazing scripts became more and more complicated, so maybe I needed a nice app that you can click and launch and be done with it to do that one thing. Single minded apps for single purpose objectives.

I asked my friendly AI super tool to suggest a way to make an app from a shell script to see if it had any ideas, and it did have a few, although Mac specific ones were not plentiful. Looking through a list of possible methods, it suggested I use the excellent and awesome Platypus app. Now that’s a name I haven’t heard of it a while.

#!/bin/sh

alias nuke="/Applications/Nuke5.2v1/Nuke5.2v1.app/Nuke5.2v1"
export NUKE_PATH="/Volumes/XSAN/District9/Foundry/Nuke/"
export OFX_PLUGIN_PATH="/Volumes/XSAN/District9/Foundry/OFX/"

/Applications/Nuke5.2v1/Nuke5.2v1.app/Nuke5.2v1

I used it many years back in VFX when working with Nuke and other pipeline tools but now I really needed it. Lucky for me it is still around and still works great. So I built a bunch of small Mac apps wrapped around simple shell scripts. Many of my scripts for P5 acted on a path (ie what folder of files do you need to examine) and making drag and drop app in Platypus was incredible easy. Add swiftDialog in the mix and you get nice messages to communicate progress.

These Platypus born simple apps worked well but I wanted to sign and notarize them and honestly that’s always fun in part because Apple, like every company, changes the way to do it all the time so I often stumbled at this step and looked for more helper apps and guidance.

I previously used SD Notary Tool and while I had success in the past I got stuck somewhere in the process and couldn’t figure it out. Then I remembered someone had posted in the MacAdmins Slack about a cool new app they built called Signaro to help sign apps. I had looked at it and was initially confused (lots of buttons and options!) but now I needed it. So I tried again and it really helped.

At first I was stuck in the same step, and it was the app specific password that was my first main issue. I couldn’t figure it out and so re-created it with Apple and still nothing, then one more time and for some reason it worked. Success!

Small side story: I did find a small bug in Signaro when entering the AppleID and App password that I reported and it was fixed right away. In the process of submitting the bug I chatted with the author and I learned about the keychain profile option to make this step easier so thanks again for the helpers in this community.

xcrun notarytool store-credentials MacVFX

This process stores your credentials securely in the Keychain. You reference these credentials later using a profile name.

Another confusing part of signing and notarizing is that there are so many certificates you need so I was super pleased to have Signaro identify that I was using an incorrect cert and suggested how to fix the issue. The step by step process and the clear messaging is a big win in this app. It’s a Swiss army knife for signing, notarizing, making DMGs, and all the steps for preparing your app for distribution. Huge shout out to the author.

So I’m pretty setup I have all the free AI coding tools to smash on my bash shell scripts, I have Platypus for creating the Mac app, bundled swiftDialog and other assets, and lastly a smooth signing and notarizing workflow with Signaro to distribute the apps. What else do I need? What about a native swift app built in Xcode?

Again talking with the friendly author of Signaro he suggested why not make a swift Xcode app with some AI super tool? Hmm, I thought. Ok, and 3 hours later I’d built something that didn’t work and my “free credits” had run out. Surprisingly, Xcode has its own AI tool helper built-in to macOS 26 and I found it quite useful to fix small issues.

When I ran into my first coding road block and free AI credit exhaustion, I also realized I needed lunch and some fresh air, even maybe a break from coding at my desk. As I took a short break I realized I could troubleshoot the old fashioned way and figure out what was not working while I waited for more “free credits” to re-materialize (or I could sign up!). After food and rest it only took me a few minutes to realize that my app did in fact work correctly, but I was testing it incorrectly!

So maybe you need fresh air and a break from the keyboard occasionally. Truth time. I finally did sign up for a month to test Claude out some more and it is great, but it also gets tired and reaches a maximum length of a conversation. Everyone needs fresh air.