Nate Darmanin turns a radio headache into free Mac app Semmihom

Built with help from AI, the Maltese DJ’s first app grew out of the repetitive task of renaming music tracks, audio files and documents.

Well-known Maltese DJ Nate Darmanin has released a free Mac app designed to take the repetition out of renaming files, after using AI to turn a personal technology project into a working product.

Called Semmihom, Maltese for “name them”, the app allows users to rename batches of files by typing instructions in everyday language. Darmanin says the idea emerged from the demands of radio work, where managing music tracks, audio files and documents meant repeatedly spending time changing filenames.

“Most of my work has always been in radio, but I've also had a little hobby on the side, playing around with technology and trying to build apps,” Darmanin told Malta Business Journal.

AI provided the help needed to bring one of those ideas to release. The result is a tool originally built for personal use and now being offered to others for free.

According to Darmanin, Semmihom can rename hundreds of files at once, including music, photographs and documents. Users can preview proposed names before applying changes and undo renaming operations afterwards.

The website lists functions such as adding or removing text, numbering files, inserting dates and creating names from file details. For someone organising a music library or preparing folders of photographs, those are tasks that can otherwise involve repeated manual edits.

Batch renaming is an established software function, and Apple already provides options for renaming multiple files through Finder. Semmihom brings a locally developed option to that category, with an emphasis on entering instructions in plain language.

Darmanin is equally measured about the project’s ambitions.

“It’s nothing groundbreaking, just a little tool I originally built to make my own life easier, which hopefully might help others too,” he said.

The project also offers a small, practical example of how AI can help someone whose main career lies outside software development build a usable application. For Darmanin, that ability to experiment has been a significant part of the experience.

“I also find it quite amazing how AI is allowing people like me, who come from a completely different background, to experiment with building things we wouldn’t have imagined doing a few years ago,” he said.

Semmihom’s website says the app supports offline use, with optional AI integrations available for more complex instructions. It lists macOS 14 or later and an Apple Silicon Mac as the system requirements.

The app is offered free through semmihom.eu, where visitors are asked to provide an email address to access the download.