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Posted by aemerson_ 1 day ago

Show HN: I spent 2 years designing a mechanical Magic Keyboard(electronicmaterialsoffice.com)
Hi HN, today I’m revealing Altar II, an ultra-low profile (4.75mm) mechanical keyboard designed to replace your Magic Keyboard. It’s the keyboard I wish Apple made.

Altar II has fully mechanical switches, plus a magnetically detachable dial, haptic feedback, a red backlight, and a native macOS companion app.

I’m a heavy Mac user and I feel that Apple hasn’t given its keyboards the attention they deserve, in terms of hardware, software, and features, so I set out to try and change that.

It was a massive undertaking and it has taken almost 2 years to get to this stage. One of the main obstacles was fitting a reasonably sized battery into the chassis, and aggressive power profiling without messing with the user experience. Another issue was we couldn’t fit any components on the underside of the PCB because there was literally no space to do so (and there are a lot of components).

Around 4 years ago I posted my first keyboard to HN (https://news.ycombinator.com/item?id=32507172). Its response blew me away and ultimately led to me quitting my job and making and selling keyboards full time. I’ve taken some of the feedback from that original post and incorporated it into Altar II (e.g. the detachable dial).

I’ll be around to answer any questions. Please let me know what you think, I’d love to get some feedback.

292 points | 237 commentspage 4
ndiddy 1 day ago|
The thing I find most attractive about mechanical keyboards is that they send a keypress when a key is only partially pressed down. When combined with the tactile bump and audible click created by actuating the key, this means that typing on a mechanical keyboard is much less fatiguing than using a rubber dome or laptop keyboard because you're only pushing the key down partially until you feel the bump and hear the click rather than slamming your finger into the bottom of the keyboard. Does your keyboard still have this feature even with the slim profile?
aemerson_ 1 day ago||
I believe you are referring to the "pre-travel" of the key and yes, Altar II has a very small amount of pre-travel actually. This is partially due to it having such a small vertical travel.
ndiddy 1 day ago||
Nice, thanks for confirming that. In practice, can you type on the keyboard without bottoming out the keys, or is it more like a laptop keyboard?
lsaferite 1 day ago||
You should check into hall effect mechanical keyboards. They can have a floating actuation point for retrigger that is based on detecting press, partial release, press. It's really pretty cool.
K0nserv 1 day ago||
Looks beautiful, congrats on the launch! I've been looking for a replacement for my Apple Magic keyboard. I would love to buy one, but ISO layout is a must for me, also would like blank or swappable keycaps.
doublerebel 1 day ago||
I am a very happy customer of the Altar I. The first one worked so well I picked up two more on the secondary market. Have had no issues. Easy to customize the effective layout as advertised. Firmware was open-sourced as promised. Delivery schedule was normal or better as Kickstarters/prefunding goes.

I’m not sure I am the customer for the II, I bought the I as a good low-profile alternative to the Apple keyboards —- but it looks like a great product.

altairprime 1 day ago||
Hey, hooray! I still have my switch-modded Altar I but it ended up being too tall for me, so this is a surprisingly great discovery for my morning. Looking forward to trying a new keyboard :D
splittydev 1 day ago||
Looks great, but sadly no fingerprint sensor is a deal breaker for me. I know it's not actually possible, so not your fault, but it's not for me. I rely on that thing way too much.
nerdjon 1 day ago||
When I saw the announcement I was kinda hoping that they were taking a magic keyboard, tearing it apart and adding the extra hardware to make having this possible.

But seems like that is not the case.

toomuchtodo 1 day ago||
If on Mac, consider TinyTouch as a potential biometric hardware supplement when a keyboard does not support: https://github.com/zimengxiong/tinytouch

(no affiliation, saw a thread on it here)

aselimov3 1 day ago||
This is so sick. I'm almost convincing myself to get it but I feel like I would really miss my 36% keyboard with multiple layers too much. Still tho...
sssilver 1 day ago||
This looks wonderful.

I wish it had the option to be ordered with blank keys.

dramm 1 day ago||
Looks very interesting, love to see the innovation/effort to go beyond the usual. What would be great for me is a version with Mac/vt-100 style number pad. Even mechanical keyboards that claim to be Mac focused largely have PC number pad layouts, and that is a pain with some software like Pro Tools keyboard shortcuts, and some legacy DEC terminal emulation needs.
markbao 1 day ago||
This is phenomenal. I know everyone is asking for their pet feature in this thread, but I would really like to see this in split keyboard format. They are much more comfortable to use since they put your wrist in a more natural position. And there are hardly any good split mechanical wireless keyboards – and certainly none this thin.

Great work on this and congratulations on the launch!

recensorium 1 day ago|
This looks awesome! The thing I'd want to know is how much of the configuration lives on firmware vs. in the macOS app? If the app is a thin config editor and the mappings remain on-device, that's very different than if the dial and haptics stop working when a future macOS release breaks the app. Also, is there any commitment on firmware being flashable/open if the company someday isn't around?
aemerson_ 1 day ago|
Everything lives on the keyboard itself. The app just configures files on the device, basically. The keyboard also works without the app of course. This approach has the added benefit of making your configuration portable. For example if you remap your dial, and move to a different computer, your remapped dial will persist.

There are a couple of small quality-of-life features that do require the app: for example if you want haptic feedback when you receive a notification. This is because the keyboard has no idea what is happening on your OS, and requires some middleware. But all the core functionality requires no app at all.

To answer your second question, the firmware for Altar II will be open-sourced, as the firmware for our Altar I keyboard is. You can see the Altar I firmware source code here: https://github.com/electronicmaterialsoffice/firmware-altar-...

Both Altar I and Altar II firmware are based on the open-source ZMK (https://zmk.dev). We try to contribute back to ZMK whenever we can because we have benefitted so much from it. Two members of our team are also long-standing ZMK contributors.

computerfriend 1 day ago||
Will the app also be free/open-source?
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