Switches
DeskHero
https://www.deskhero.ca/ZealPC
https://zealpc.net/
Keyboards
Epomaker
https://epomaker.com/Wuque Studio
https://shop.wuquestudio.com/JKeys
https://jkeys.design/collections/allZFront
https://en.zfrontier.com/collections/gmkGlorious
https://www.pcgamingrace.com/1upkeyboards
https://1upkeyboards.com/monokei
https://monokei.co/Graystudio
https://graystudio.club/RAMA
https://rama.works/KBDfans
https://kbdfans.com/KPrepublic Global
https://kprepublic.com/Drop
https://drop.com/mechanical-keyboards/drops
Reference
MYOC - Make your own caps!
https://geekhack.org/index.php?topic=23722.0기계식키보드 갤러리
https://gall.dcinside.com/mgallery/board/lists?id=mechanicalkeyboardGeekhack
https://geekhack.org/index.php?board=70.0원버튼 키보드 영상
https://www.reddit.com/r/MechanicalKeyboards/comments/odnhtn/what_this_sub_is_heading_towards_credit_to/원버튼 키보드 만들기
https://careers.centric.eu/nl/blog/net-development/lets-get-on-board-how-to-make-a-one-button-usb-keyboard/
KeyCaps
3DITDA
https://www.3ditda.com/Kono
https://kono.store/sakura
https://www.osumekeys.com/product/sakuraEtsy
https://www.etsy.com/?ref=lgoThocc Supply
https://thocc.supply/3DITDA
https://www.3ditda.com/group_buyJelly POM Keycaps
https://esckeyboard.com/Ashkeebs
https://www.ashkeebs.com/CandyKeys
https://candykeys.com/craftkey
https://www.craftkeyartisan.com/Capsmiths
https://capsmiths.com/UK
http://www.ukkeycaps.co.uk/product/dsa-vilebloom