Installing OpenBSD on the Pomera DM250
These are my notes and pre-built images for getting OpenBSD-current installed on the Pomera DM250, DM250X, DM250XY, and DM250US.
Pomera DM250 Tinkering
The KING JIM Pomera DM250 "digital typewriter" is a small Linux-powered ARM computer that boots up into a custom word processor application. I've been tinkering with it to try to get OpenBSD booted on it. I'd normally wait until the end and write up a proper article explaining everything, but this process is taking a lot longer than I expected so I figured I'd document it all as I go.
iMac G4(K)
A year ago I tried using an M1 iMac for work duty but its 21" screen took up too much room on my desk. After seeing Sean's video on Action Retro about putting an M4 Mac Mini inside an iMac G4, I thought I'd give it a try.
Wallops 2.2 Released
A new release of my Wallops IRC client is available:
- wallops-2.2.sit
(StuffIt 3 archive)
SHA256:adc2b473664ec0960b5b028335566831 dd69f4a1de40f79e 22bf1337292cca88
SHA1:603c5080c41a0d5752cae49a08376db4 e18628b1
This update includes a number of new features and bugfixes:
BlueSCSI Wi-Fi Desk Accessory 1.4 Released
BlueSCSI Wi-Fi Desk Accessory 1.4 has been released:
This update fixes a bug that was breaking hidden SSID entry.
Video: C Programming on System 6 - VCFMW, CMaster
I found a neat THINK C extension that I wanted to share, and I'm going to have a table at the Vintage Computer Festival Midwest next month.
Adding Custom Sleep Screen Images to the Kindle Scribe
Last year I upgraded my Kindle Paperwhite to a Kindle Scribe to be able to write notes and draw diagrams while programming to help visualize things.
One thing that bothered me about the Scribe was that its sleep screen images were pretty boring and because I'm now often reading PDFs or writing in a notebook, I couldn't benefit from the Kindle OS's new functionality that uses the cover of the book being read as the sleep screen image (which previously required a jailbreak and custom software).
Since the process for installing custom sleep screen images is rather cumbersome and the information is scattered across old forum posts, I thought I'd document how I did it to possibly make it easier for someone else.
OpenBSD on the Lenovo ThinkPad X1 Nano (1st Gen)
Lenovo has finally made a smaller version of its X1 Carbon, something I've been looking forward to for years.
Adding a USB Port to the ThinkPad X1 Nano (the Hard Way)
I wanted to add an internal USB port to my ThinkPad X1 Nano which should have been a fairly easy thing to do, but it wasn't.
Of course, if I were still using my Framework Laptop it would be as easy as plugging in a custom module but I've been using my X1 Nano as my primary laptop for quite some time now.
Video: C Programming on System 6 - Carl Update, Test Suite, Malloc Tracing
I've been working on Carl, my IMAP e-mail client, for the past few months.
Subtext 4.0 Released
Subtext 4.0 has been released:
- subtext-4.0.sit
(StuffIt 3 archive, includes
source code
and THINK C 5 project file)
SHA256:c33a6abe15e7f07159a18d936dce7c43 5d9619f80d6c53d1 cdd26fabf06712f7
SHA1:0f4bdcd08b57b568125d8ddcab5ad97f 1f5dd586 - ipdb-2023-11.db (Free IP Geolocation from DB-IP, converted to Subtext IPdb format)
Wikipedia Reader 1.1 Released
Wikipedia Reader 1.1 has been released:
- wikipedia-1.1.sit
(StuffIt 3 archive, includes
source code
and THINK C 5 project file)
SHA256:14761cefe2552886476cdf018445d445 4f355fca31636af5 d55c52e7b28908da
SHA1:acd1b9433113237d0fd5e15fba6a4c4b 992be783
Changes in this version:
- Add support for opening multiple windows
- When clicking a hyperlink with the Command key down, open the link in a new window
- Try allocating more memory to resize internal buffers when parsing rather than just giving up right away
Video: C Programming on System 6 - VCF Midwest 18, Subtext FidoNet Support, Wi-Fi DA, PowerBook Batteries
I attended the Vintage Computer Festival Midwest 18 and made some things.
Adding Wi-Fi to the Macintosh Portable
Over the past year or so, I've been working with other BlueSCSI developers to add Wi-Fi functionality to their open-hardware SCSI device, enabling Wi-Fi support for old Macs and other vintage computers going back some 36 years.
Advice for Operating a Public-Facing API
I've been operating Pushover's public-facing API for over a decade now and I thought I'd pass on some advice for those creating a new API.
Pushover's API might be unusual in that it is used by a wide range of devices (embedded IoT things, legacy servers, security cameras, etc.) and HTTP libraries, rather than mostly being accessed from JavaScript in the latest web browsers. It also doesn't process sensitive financial information, so the advice given here may not be applicable to something operating like Stripe's API.