Alternate keymap for Alpha keyboard, enjoy! (#4797)

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keyboards/alpha/keymaps/vderm/README.md

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+# Alpha 28-Key Keyboard Alternate Keymap
+Alternate keymap for [Alpha 28-key keyboard](https://github.com/qmk/qmk_firmware/tree/master/keyboards/alpha).
+
+## How-to
+Assuming you've followed all the instructions from the original post, put my "keymap.c" file in "$qmk-firmware-folder$/keyboards/alpha/keymaps/vderm/" and then run your make command ("make alpha:vderm" while in $qmk-firmware-folder$ where this folder is what you've downloaded from the official github page) to compile the hex file to upload to your microcontroller. I've also uploaded my hex file.
+
+## Description
+Instead of going up and down layers like in the original Alpha keyboard, I've made the bottom row keys all have alternate functions:
++ Like in the original Alpha28 keymap, the 2U spacebar is a shift key when held down and space when tapped
++ Z and M are Ctrl keys when held down or Z and M when tapped
++ X and N are Alt keys
++ C activates the function keys layer (arrows, page up/dn, esc, tab, etc.)
++ V activates the characters and numbers layer
++ C and V combined activated the F-keys layer (F1, F2, F3, etc.)
++ The enter key is an enter key in the home layer, backspace in the function keys and characters/numbers layer and a delete in the F-keys layer
++ While in the other layers, the bottom row acts like a "regular" bottom modified row: ctrl, alt, winkey
+
+## Keymap
+![keymap](https://imgur.com/ZbDz0eL.jpg)
+
+## Build Images
+Here is my keyboard.
++ Switches: Aliaz Silent Switches (Tactile), PCB mount, 80g from [KBDfans](https://kbdfans.cn/collections/aliaz-switches/products/pre-orderaliaz-silent-switch-tactile?variant=2519899832333)
++ PCB board: ordered from JLCPCB, in white
++ Keycaps: ebay, can't find link :S
++ Bottom plate: I cut a piece of canary wood that was laying around, needs to be varnished; I also need to actually screw the pcb to the wood instead of relying on double-sided tape
+
+![vderm_alpha0](https://imgur.com/MjjoVtr.jpg)
+![vderm_alpha1](https://imgur.com/mIFu9WV.jpg)
+![vderm_alpha2](https://imgur.com/A70Iemw.jpg)
+![vderm_alpha3](https://imgur.com/eYljPWh.jpg)
+![vderm_alpha4](https://imgur.com/OhUKowj.jpg)
+
+Good luck on your build!  
+//vderm

keyboards/alpha/keymaps/vderm/keymap.c

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+#include QMK_KEYBOARD_H
+
+#define HOME 0
+#define FN 1
+#define FNCHAR 2
+#define FKEYS 3
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+	[HOME] = LAYOUT(
+		KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P,
+		KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_ENT,
+		MT(MOD_LCTL, KC_Z), MT(MOD_LALT, KC_X), LT(1, KC_C), LT(2, KC_V), MT(MOD_LSFT, KC_SPC), MT(MOD_RGUI,KC_B), MT(MOD_RALT, KC_N), MT(MOD_RCTL, KC_M)),
+
+	[FN] = LAYOUT(
+		KC_ESC, KC__MUTE, KC_VOLD, KC_VOLU, KC_MPLY, KC_HOME, KC_PGDN, KC_PGUP, KC_END, KC_NO,
+		KC_TAB, KC_NO, KC_NO, KC_NO, KC_NO, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT, KC_BSPC,
+		KC_LCTL, KC_LALT, KC_TRNS, MO(3), MT(MOD_LSFT, KC_SPC), KC_RGUI, KC_RALT, KC_RCTL),
+
+	[FNCHAR] = LAYOUT(
+		KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0,
+		KC_GRV,KC_NO,KC_MINS,KC_EQL,KC_BSLS,KC_LBRC,KC_RBRC,KC_SCLN,KC_QUOT,KC_BSPC,
+		KC_LCTL, KC_LALT, MO(3), KC_TRNS, MT(MOD_LSFT, KC_SPC), KC_COMM, KC_DOT, KC_SLSH),
+
+	[FKEYS] = LAYOUT(
+		KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10,
+		KC_F11,KC_F12,KC_NO,KC_NO,KC_NO,KC_NO,KC_NO,KC_NO,KC_NO,KC_DEL,
+		KC_LCTL, KC_LALT, KC_TRNS, KC_TRNS, MT(MOD_LSFT, KC_SPC), KC_RGUI, KC_RALT, KC_RCTL),
+};
+
+void matrix_init_user(void) {
+}
+
+void matrix_scan_user(void) {
+}