What is SpaceFN and why you should give it a try
The SpaceFN concept - setting up your space key as a layer switch when held - is probably one of the most useful tweaks in the keyboard hobby. Let me explain how it works. My SpaceFN article on kbd.news made some rounds recently - quite surprisingly given the age of this concept. This piece you're reading is a condensed version of the full post. If you're left with unanswered questions, you'll most likely find the info you're looking for in the original write-up. On my imaginary top list of the most useful keyboard features, tweaks and hacks, SpaceFN would deserve a podium finish for sure. But what makes it so special? In short: SpaceFN is easy to implement, easy to learn, costs nothing, can be used with any keyboard, and can improve your productivity instantly. I will list its benefits below, but can state right at this point that the SpaceFN concept, setting up your space key as a layer switch when held, is clearly one of the most useful tweaks in the keyboard hobby....
Apr 30, 2024
The long reply:
If your keyboard has "normal"-width keys, that shouldn't be too hard to do (maybe except the tape controls).
WRT the color way, there are a few companies that sell individual keycaps (http://pimpmykeyboard.com/ and http://www.wasdkeyboards.com/ are the two that come to mind, but there are others). If they don't have what you're looking for, WASD (not sure about PMK) will make custom one-offs for you. I don't know what they charge for that, but since the only "custom " part would the color, I'd hope it wouldn't be much.
WRT to the tape keys, you can get "media keycaps" from at least one of those sites, but I don't think it had the "record" button. If your vendor uses dye-sublimation to print the keycaps, that's fine. The molds for double-shot keycaps are several thousand $$$ though, so if you go that route for the rest of your caps, be aware that if your vendor for the other caps is only offering double-shots, you'll probably have to source the record button from someone else. I mean, go ahead and ask anyway since they might just happen to already have a mold laying around that either matches the "•" (or is close enough), but be prepared to see a *very* big number for that particular key.
Speaking of different vendors and such, be aware that different companies make their keycaps in different shapes, or "profiles"... sometimes *really* different. The SA profile from Signature Plastics (Pimp My Keyboard is their outlet) is popular right now, but they'll stick out like ten sore thumbs if the rest of your keyboard's caps are OEM/Cherry, DSA, or some other profile. Here's a pic that shows a few of them side-on so you can see the differences: https://m.imgur.com/r/MechanicalKeyboards/kFxqOm8, but there are at least two profiles missing from that, "XDA" and "MT3" (https://www.massdrop.com/talk/1624/about-mt-3-profile-and-dev-tty-set), so keep that in mind. Although, come to think of it, having the "tape" keys all be a different profile from the regular keys might look cool. From the picture you posted, it almost looks like Amstrad did that anyway.
Finally, WRT to the large QWERTY typeface, dunno. I've never specifically looked for that, but I'd be surprised if *some* one didn't stock them. It seems like roughly half the drops we've had here recently had fairly large legends. I don't recall the last time one of the custom keycap sets had white-on-black, like in that picture, though. You might have better luck looking for a pre-made set for those.
Anyway, I hope that was helpful. I'm not the expert around here, but I'm always happy to share what I know :-)