TweetFollow Us on Twitter

MacTech Spotlight: David Sinclair, Owner, Dejal Systems, LLC

Volume Number: 23 (2007)
Issue Number: 10
Column Tag: MacTech Spotlight

MacTech Spotlight: David Sinclair

Owner, Dejal Systems, LLC

What do you do?

Dejal is a small ISV, so I do pretty much everything, including Cocoa development, customer support, accounting, PHP web development, graphic design, etc. I do have a developer that helps with Dejal Simon plugins etc, and I've used graphic designers for some app icons and the new Dejal logo. In addition to my own products, I do contracting work part-time.

How long have you been doing what you do?

I learned BASIC in 1982 as my first programming language, and knew that's what I wanted to do with my life. In 1988 I switched to Pascal on Mac Pluses at the University of Auckland in New Zealand, and started playing around with apps, but didn't sell anything until I created Dejal (originally called Dejal Userware, for user-friendly software) in 1991. Back then it was just a hobby, selling utilities for System 5 through Mac OS 9 (they're still available as freeware: http://www.dejal.com/classic/). There wasn't a web back then, though; I distributed my software via Compuserve, AOL, floppy disks, and later CDs, and provided licenses via airmail (from New Zealand), hand-written on photocopied certificates.

When my wife and I moved to the US in 2001, I learned Cocoa, developed my first Mac OS X apps, and registered my company as Dejal Systems, LLC in 2002.

Your first computer:

I got my first computer in 1983: a Sinclair ZX81, with 3.25 MHz Z80 processor, 1K of RAM, a cassette tape drive, tiny membrane keyboard, and hooked to a B&W TV. I first used a Mac at school: an original 128K Mac in 1984... but I didn't own one until I got a Mac Plus in 1988.

Are you Mac-only, or a multi-platform person?

Definitely Mac-only. I have a Windows box I got a few years ago for a project, but it just gathers dust.

Do the products you develop scratch a personal itch, or are they for others?

A bit of both. Obviously I need to keep marketability in mind when working on products. Most started out as fulfilling a need I didn't see being adequately serviced with existing products in the marketplace. Narrator started as a fun way to learn Cocoa. Simon began as a way for me to watch for website updates, and became more sophisticated as it became popular. I created Time Out to improve my health, since I can suffer from eyestrain when staring at a computer for hours on end. Caboodle was written to compete with others in the snippet-keeper market, as I didn't really like the approach existing ones took. Macfilink was created in partnership with an affiliate marketer to serve that community. BlogAssist was written specifically for my wife, who was really into LiveJournal blogging at the time. All of the products have grown and evolved over the years based on customer feedback -- it's really important to listen to what people say about products and incorporate their ideas into the design, as makes sense. I keep track of all suggestions, and tally votes for them to determine the most requested enhancements, to which I give priority when deciding on features for an update.

What's the coolest tech thing you've done using OS X?

One thing I'm quite pleased with is the Script plugin in Dejal Simon. Simon is a server monitoring tool that uses a plugin model for services, notifiers, and reports. The Script plugin allows running AppleScripts, shell scripts, Perl, Python, Ruby, or other scripts to perform checks and notifications for local or remote servers and processes. I like it as it leverages Mac OS X's unix underpinnings to significantly enhance the reach of the product. That would've been much harder under Mac OS 9 or Windows.

Ever?

I wrote an integrated environment for an old SpectraVideo MSX computer (loaded off 5.25" floppies) around 1986, complete with a basic word processor, spreadsheet, and more. It was never released, though.

Where can we see a sample of your work?

Try my products: free trials are available at http://www.dejal.com.

See my code: open source Cocoa at http://www.dejal.com/developer/.

Read my thoughts: subscribe to my blog at http://www.dejal.com/blog/.

The next way I'm going to impact IT/OS X/the Mac universe is:

I'm excited about the upgrades of the Dejal apps for Leopard. Simon 3 and Time Out 2 will be major upgrades, with much-improved UI and features.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Vivaldi 1.9.818.44 - An advanced browser...
Vivaldi is a browser for our friends. In 1994, two programmers started working on a web browser. Our idea was to make a really fast browser, capable of running on limited hardware, keeping in mind... Read more
Skim 1.4.29 - PDF reader and note-taker...
Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file. Skim includes many features and has a... Read more
1Password 6.7.1 - Powerful password mana...
1Password is a password manager that uniquely brings you both security and convenience. It is the only program that provides anti-phishing protection and goes beyond password management by adding Web... Read more
FontExplorer X Pro 6.0.2 - Font manageme...
FontExplorer X Pro is optimized for professional use; it's the solution that gives you the power you need to manage all your fonts. Now you can more easily manage, activate and organize your... Read more
VOX 2.8.24 - Music player that supports...
VOX just sounds better! The beauty is in its simplicity, yet behind the minimal exterior lies a powerful music player with a ton of features and support for all audio formats you should ever need.... Read more
OmniPlan 3.7.1 - Robust project manageme...
With OmniPlan, you can create logical, manageable project plans with Gantt charts, schedules, summaries, milestones, and critical paths. Break down the tasks needed to make your project a success,... Read more
Dropbox 24.4.17 - Cloud backup and synch...
Dropbox is an application that creates a special Finder folder that automatically syncs online and between your computers. It allows you to both backup files and keep them up-to-date between systems... Read more
WhatsApp 0.2.4238 - Desktop client for W...
WhatsApp is the desktop client for WhatsApp Messenger, a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. WhatsApp Messenger is available for... Read more
SteerMouse 5.1 - Powerful third-party mo...
SteerMouse is an advanced driver for USB and Bluetooth mice. It also supports Apple Mighty Mouse very well. SteerMouse can assign various functions to buttons that Apple's software does not allow,... Read more
OmniPlan Pro 3.7.1 - Professional-grade...
With OmniPlan Pro, you can create logical, manageable project plans with Gantt charts, schedules, summaries, milestones, and critical paths. Break down the tasks needed to make your project a success... Read more

Latest Forum Discussions

See All

Fire Emblem Heroes event announces new m...
As reported yesterday, Nintendo was gearing up a live press event for their popular mobile game,Fire Emblem Heroes. While the stream revealed a lot of new things, the event was entirely in Japanese. Luckily we have a rundown of what was announced... | Read more »
Best games we played this week
Another week, another slate of new mobile games. Although there weren't as many big name releases as last week, there were plenty of unique video game titles that came out that's sure to keep you interested over the weekend. Everything from classic... | Read more »
Olli by Tinrocket (Photography)
Olli by Tinrocket 1.0 Device: iOS iPhone Category: Photography Price: $2.99, Version: 1.0 (iTunes) Description: Get drawn in with Olli by TinrocketOlli instantly turns your everyday moments into hand-drawn art and animations. • Watch... | Read more »
Penarium (Games)
Penarium 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: | Read more »
Fire Emblem Heroes is way more profitabl...
Profits for Nintendo's mobile game Fire Emblem Heroes are apparently impressive enough to beat out other Nintendo titles likeSuper Mario Run, despite having 10 times fewer downloads. [Read more] | Read more »
Classic series Robot Unicorn Attack 3 no...
The classic Adult Swim browser game, Robot Unicorn Attack, branched off into a series of popular mobile games. Now, the latest entry into the series, Robot Unicorn Attack 3, is available for iOS and Android mobile devices. [Read more] | Read more »
Sudoku Sweeper (Games)
Sudoku Sweeper 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: A minimalist mashup of Minesweeper and Sudoku. Logic puzzle perfection. Every row, column and zone contains a bomb and one of... | Read more »
Under Leaves (Games)
Under Leaves 1.0.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0.0 (iTunes) Description: Journey into the forest, the jungle or the depths of the deep blue sea. Find chestnuts for the pigs, a caterpillar for the... | Read more »
Ninja Pizza Girl (Games)
Ninja Pizza Girl 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: In the not-so-distant future, rampart traffic congestion has resulted in only one way to deliver pizzas across town in thirty... | Read more »
SCRAP (Games)
SCRAP 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: That day, for no apparent reason, SCRAP decided to wake up and run. He had to, because his activation was a mistake the "Factory" could... | Read more »

Price Scanner via MacPrices.net

13-inch 2.9GHz/256GB Space Gray Touch Bar Mac...
B&H Photo has the 13″ 2.9GHz/256GB Space Gray Touch Bar MacBook Pro in stock today and on sale for $150 off MSRP including free shipping plus NY & NJ sales tax only: - 13″ 2.9GHz/256GB Touch... Read more
21-inch iMacs on sale for up to $151 off MSRP
B&H Photo has 21″ iMacs on sale for up to $151 off MSRP, each including free shipping plus NY sales tax only: - 21″ 3.1GHz iMac 4K: $1348 $151 off MSRP - 21″ 2.8GHz iMac: $1199.99 $100 off MSRP... Read more
Weekend deal: Up to $420 off new MacBook Pros...
Apple has Certified Refurbished 2016 15″ and 13″ MacBook Pros available for $230 to $420 off original MSRP. An Apple one-year warranty is included with each model, and shipping is free: - 15″ 2.6GHz... Read more
Price drop: 15-inch 2.2GHz Retina MacBook Pro...
Amazon has dropped their price on 15″ 2.2GHz Retina MacBook Pros (MJLQ2LL/A) to $1709.99 including free shipping. Their price is $290 off MSRP for this model. Note that stock may sell out quickly at... Read more
2.8GHz Mac mini on sale for $899, save $100
B&H Photo has the 2.8GHz Mac mini (model number MGEQ2LL/A) on sale for $899 including free shipping plus NY & NJ sales tax only. Their price is $100 off MSRP. Read more
Check Apple prices on any device with the iTr...
MacPrices is proud to offer readers a free iOS app (iPhones, iPads, & iPod touch) and Android app (Google Play and Amazon App Store) called iTracx, which allows you to glance at today’s lowest... Read more
New System Clock for macOS by B-Eng Now Avail...
Fehraltorf, Switzerland based B-Eng has announced the release and immediate availability of System Clock, the company’s new system monitor and information app developed exclusively for macOS. System... Read more
DEVONtechnologies Celebrates 15th Anniversary...
DEVONtechnologies celebrates its 15th company anniversary with a 30% discount on all its software products from May 1st through 5th, 2017. In spring 2002, DEVONtechnologies opened its website and... Read more
WaterField Designs Invites Customers to Help...
San Francisco based WaterField Designs invites customers and air travelers to participate in developing the next generation in-flight travel case, the Air Porter. Frustrated with limited legroom,... Read more
Save up to $260 with Apple refurbished 12-inc...
Apple has Certified Refurbished 2016 12″ Retina MacBooks available for $200-$260 off MSRP. Apple will include a standard one-year warranty with each MacBook, and shipping is free. The following... Read more

Jobs Board

*Apple* Mobile Master - Best Buy (United Sta...
**501505BR** **Job Title:** Apple Mobile Master **Location Number:** 000849-Gurnee-Store **Job Description:** **What does a Best Buy Apple Mobile Master do?** At Read more
Best Buy *Apple* Computing Master - Best Bu...
**498428BR** **Job Title:** Best Buy Apple Computing Master **Location Number:** 000293-Rockville-Store **Job Description:** **What does a Best Buy Apple Read more
*Apple* Mac Computer Technician - GeekHampto...
…complex computer issues over the phone and in person? GeekHampton, Long Island's Apple Premium Service Provider, is looking for you! Come work with our crew Read more
*Apple* Retail - Multiple Positions- Chicago...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Systems Engineer - California Polyte...
Cal Poly, San Luis Obispo Apple Systems Engineer Department: ITS - Customer & Tech Support (134900) College/Division: Academic Affairs Salary Range: Position Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.