Anders Borum
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borum.dev
Anders Borum
@borum.dev
1.1K followers 620 following 270 posts
I make developer tools for iOS and Mac: @workingcopy.app @secureshellfish.app https://s3files.app
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borum.dev
White and grey cat sleeping on a bed.
September 5, 2025 at 8:03 AM
borum.dev
My older cat is relaxed and happy now that the kitten is out of the picture.
Grey and white cat in front of shrubbery looking around.
August 26, 2025 at 1:48 PM
borum.dev
Jeg leder efter et hjem til min halvt år gamle killing Shaggy.

Han er sød, kælen og sjov men vores voksne kat nægter at acceptere ham selvom vi gjorde alt for at introducere dem blidt.

Han er vaccineret, chippet og neutraliseret. Skriv hvis du har et hyggeligt hjem til ham tæt på Kbh og del gerne.
August 20, 2025 at 11:02 AM
borum.dev
Chapter on City Disorder from Civilization Manual.
Under the government types Despotism, Monarchy, or Communism, it is possible to restore order to a city using martial law. Each military unit in a city makes one unhappy citizen content. Only those units possessing an attack factor of 1 or more can impose martial law. By moving enough units into a city suffering civil disorder, order may be restored.
August 15, 2025 at 1:45 PM
borum.dev
You are doing this gods work.
August 3, 2025 at 10:29 AM
borum.dev
The revenue chart for the first 11 years of Working Copy backs this up.
August 3, 2025 at 9:18 AM
borum.dev
Grey and white cat climbing tree looking into camera.
June 9, 2025 at 2:24 PM
borum.dev
Kelly is extremely unimpressed by the kitten.
June 9, 2025 at 6:54 AM
borum.dev
I don’t plan to retire builds as such but make the last update on a given beta feed URL point to a non-test build.

Not using Sparkle though as I need updates to happen in a very specific way.
June 6, 2025 at 10:47 AM
borum.dev
S3 has a concept of pre-signed links granting temporary access to a single file.

My S3 client uses this for minimal-infrastructure sharing of files and upload of files where the other part just needs a web browser.

apps.apple.com/app/apple-st...
June 2, 2025 at 1:05 PM
borum.dev
Can standing on fence.
May 4, 2025 at 12:11 PM
borum.dev
Try out HyperContext for automating your Mac from Claude in a controlled way. workingcopy.app/test/HyperCo...

There are other similar tools but HyperContext makes it particularly easy to restrict which Mail folders, Contacts groups, Reminders lists, Calendars and Shortcuts are available to Claude.
May 2, 2025 at 7:29 AM
borum.dev
By using presigned put links from a page hosted via presigned get links you can make secure requests for anybody with a browser to upload to your S3 bucket.

It works with AWS, Backblaze, MinIO instances and I would expect any other S3 service with presigned link support.

Coming soon to s3files.app
March 31, 2025 at 11:48 AM
borum.dev
March 25, 2025 at 5:37 PM
borum.dev
If you could commission one fictional character to fix the current US political problems, who would it be?
Prince George from Blackadder
March 14, 2025 at 4:03 PM
borum.dev
March 5, 2025 at 1:17 PM
borum.dev
You can get some of the way using a share sheet shortcut like
www.icloud.com/shortcuts/45...
February 23, 2025 at 3:41 PM
borum.dev
I made a small little menu bar thing showing upload progress in the FTP + S3 apps.
February 19, 2025 at 12:32 PM
borum.dev
S3 Files was updated today with support for client-side AES-GCM encryption making strong end-to-end encryption on S3 very easy.
apps.apple.com/app/apple-st...

Filenames are not encrypted.
February 12, 2025 at 3:10 PM
borum.dev
February 8, 2025 at 9:39 AM
borum.dev
Kelly is judging you!
Cat lying on on grass looking straight into your soul.
February 6, 2025 at 8:57 PM
borum.dev
Cat in front of some plants looking at camera.
January 21, 2025 at 3:22 PM
borum.dev
I have started testing server-side-encryption with customer-provided keys (SSE-C) in my S3 client. Help me iron out the kinks by running the TestFlight beta. testflight.apple.com/join/QA73p33u

I know a lot of people would prefer client-side-encryption but SSE-C is a nice stepping stone.
January 19, 2025 at 5:55 PM
borum.dev
Improvements in Swift concurrency allows early detection of unsafe code making it crash at compile-time instead of at run-time.
------------------------------------- Translated Report (Full Report Below) ------------------------------------- Process: swift-frontend [2372] Path: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend Identifier: swift-frontend Version: ??? Code Type: ARM-64 (Native) Parent Process: XCBBuildService [1269] Responsible: Xcode [1064] User ID: 501 Date/Time: 2025-01-17 09:11:18.5409 +0100 OS Version: macOS 15.2 (24C101) Report Version: 12 Anonymous UUID: 3BFCBE19-E0AC-0B97-4BE5-21BE0CD8C402 Time Awake Since Boot: 990 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008 Exception Codes: 0x0000000000000001, 0x0000000000000008
January 17, 2025 at 8:20 AM
borum.dev
Drag files to and from S3 storage on iOS and Mac:
apps.apple.com/app/apple-st...
January 16, 2025 at 3:01 PM