[Keymap] Add uqs' keymaps for various boards and ploopy mouse (#16265)

4 files changed, 725 insertions, 0 deletions

diff --git a/users/uqs/config.h b/users/uqs/config.h
new file mode 100644
index 000000000..b8a140fe8
--- /dev/null
+++ b/users/uqs/config.h
@@ -0,0 +1,40 @@
+// Copyright 2022 Ulrich Spörlein (@uqs)
+// SPDX-License-Identifier: GPL-2.0-or-later
+#pragma once
+
+#ifdef RGBLIGHT_ENABLE
+#    define RGBLIGHT_SLEEP
+//#    define RGBLIGHT_ANIMATIONS      // disabled to save space
+#    define RGBLIGHT_LAYERS
+#    define RGBLIGHT_MAX_LAYERS 8      // default is 16
+#    define RGBLIGHT_DISABLE_KEYCODES  // RGB_foo keys no longer work, saves 600 bytes
+#    define RGBLIGHT_DEFAULT_HUE 15
+#endif
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 6  // default is 4 for VIA builds
+
+#define TAPPING_TOGGLE 2  // number of taps for a toggle-on-tap
+#define TAPPING_TERM 170  // ms to trigger tap
+// https://precondition.github.io/home-row-mods
+#define TAPPING_FORCE_HOLD  // make tap-then-hold _not_ do key auto repeat
+#define IGNORE_MOD_TAP_INTERRUPT
+#define PERMISSIVE_HOLD  // I don't think this works for me, hence I rolled my own implementation.
+
+#define LEADER_TIMEOUT 400
+#define LEADER_PER_KEY_TIMING
+
+#define UNICODE_SELECTED_MODES UC_LNX
+
+// make KC_ACL0 et al work when held.
+#define MK_COMBINED
+#define MOUSEKEY_WHEEL_INTERVAL 40  // default is 50, lower means more scroll events, 40 works ok.
+
+// From https://michael.stapelberg.ch/posts/2021-05-08-keyboard-input-latency-qmk-kinesis/
+#define USB_POLLING_INTERVAL_MS 1
+
+#ifdef KEYBOARD_preonic_rev3
+// Some games seem to not register Esc otherwise when tapped, maybe try with this delay?
+#    define TAP_CODE_DELAY 30
+#else
+#    define TAP_CODE_DELAY 10
+#endif
diff --git a/users/uqs/rules.mk b/users/uqs/rules.mk
new file mode 100644
index 000000000..605036295
--- /dev/null
+++ b/users/uqs/rules.mk
@@ -0,0 +1,24 @@
+# don't include for keyboards/ploopyco/mouse/keymaps/uqs
+ifeq ($(filter $(strip $(KEYBOARD)),ploopyco/mouse),)
+    SRC += uqs.c
+
+    RGBLIGHT_ENABLE ?= yes      # Enable keyboard RGB underglow
+    LTO_ENABLE ?= yes  # disables the legacy TMK Macros and Functions features
+
+    UCIS_ENABLE = yes
+    LEADER_ENABLE = yes
+    COMBO_ENABLE = yes
+    MOUSEKEY_ENABLE = yes
+
+    # Disable all the unused stuff.
+    SPACE_CADET_ENABLE = no
+    COMMAND_ENABLE = no
+    MAGIC_ENABLE = no
+endif
+
+# From https://michael.stapelberg.ch/posts/2021-05-08-keyboard-input-latency-qmk-kinesis/
+# adds about 900 bytes! Don't use it on puny AVR though.
+# ifeq (,$(filter $(MCU), atmega16u2 atmega32u2 at90usb162)) # doesn't work MCU not set yet
+ifneq (,$(filter $(KEYBOARD),ploopyco/mouse preonic/rev3))
+    DEBOUNCE_TYPE = asym_eager_defer_pk
+endif
diff --git a/users/uqs/uqs.c b/users/uqs/uqs.c
new file mode 100644
index 000000000..72284143c
--- /dev/null
+++ b/users/uqs/uqs.c
@@ -0,0 +1,584 @@
+// Copyright 2022 Ulrich Spörlein (@uqs)
+// SPDX-License-Identifier: GPL-2.0-or-later
+// vi:et sw=4:
+
+#include "uqs.h"
+
+// LOG:
+// late Jan 2020, got Ohkeycaps Dactyl Manuform 5x6
+// https://play.typeracer.com shows about 75-80wpm (en) or ~400cpm (de) on my classic keeb.
+// Never did proper touch typing, basically didn't use ring finger much, mostly index/middle and pinky (only to hold down modifiers, really).
+// Feb 2020, switching to Colemak DH after 30 years of Qwerty, uh oh...
+// mid Feb, 20wpm/87% on monkeytype.com (no punct, numbers)
+// early March, 28wpm/90% on MT (plus punct./numbers from here on); 25wpm on typeracer
+// early April, 35wpm/92% on MT; 41wpm on typeracer
+// early May, 45wpm/96% on MT; 46wpm on typeracer; my qwerty is deteriorating, I need to look at the keys more and more o_O
+// early June, 49wpm/95% on MT (sigh ...); 50wpm on typeracer;
+// early July, 50wpm/96% on MT (...); 52wpm/96% on typeracer;
+// early August, 55wpm/96% on MT; 55wpm/98% on typeracer;
+// early September, 57wpm/97% on MT; 58wpm/97% on typeracer;
+// early October, 59wpm/96% on MT; 61wpm/97% on typeracer;
+// November, 56wpm/97% on MT; 62wpm/98% on typeracer;
+// December, 62wpm/96% on MT; 66wpm/98% on typeracer;
+// January, 61wpm/97% on MT; 65wpm/98% on typeracer;
+// February, 64wpm/97% on MT; 67wpm/98% on typeracer; my qwerty on the laptop is still fine, but I miss my shortcuts badly.
+//
+// So that's one year on Colemak. Was it worth the switch? Probably not, though
+// I also had to first learn proper technique, but that was actually swift, as
+// the keyboard nicely forces that on you. I really like home row mods though,
+// they are so comfy. Need to rethink my combos some more, still.
+
+
+#ifdef RGBLIGHT_LAYERS
+layer_state_t default_layer_state_set_user(layer_state_t state) {
+    rgblight_set_layer_state(L_QWER, layer_state_cmp(state, L_QWER));
+    rgblight_set_layer_state(L_WASD, layer_state_cmp(state, L_WASD));
+    rgblight_set_layer_state(L_COLM, layer_state_cmp(state, L_COLM));
+    return state;
+}
+#endif
+
+layer_state_t layer_state_set_user(layer_state_t state) {
+#if 0
+    // defining layer L_FUNC when both keys are pressed
+    state = update_tri_layer_state(state, L_EXTD, L_NUM, L_FUNC);
+#endif
+#ifdef RGBLIGHT_LAYERS
+    rgblight_set_layer_state(L_EXTD, layer_state_cmp(state, L_EXTD));
+    rgblight_set_layer_state(L_NUM, layer_state_cmp(state, L_NUM));
+    rgblight_set_layer_state(L_FUNC, layer_state_cmp(state, L_FUNC));
+    rgblight_set_layer_state(L_MOUSE, layer_state_cmp(state, L_MOUSE));
+#else
+#endif
+    return state;
+}
+
+#ifdef RGBLIGHT_LAYERS
+// NOTE: at most 2 elements, last one needs to be RGBLIGHT_END_SEGMENTS
+typedef rgblight_segment_t rgblight_layer_t[3];
+
+const rgblight_layer_t PROGMEM my_rgb_segments[] = {
+    [L_QWER] = {{0, RGBLED_NUM, HSV_WHITE},  RGBLIGHT_END_SEGMENTS},
+    [L_WASD] = {{0, RGBLED_NUM/2, HSV_RED}, {RGBLED_NUM/2, RGBLED_NUM/2, HSV_OFF}, RGBLIGHT_END_SEGMENTS},
+    [L_COLM] = {{0, RGBLED_NUM, HSV_GREEN},  RGBLIGHT_END_SEGMENTS},
+    [L_EXTD] = {{0, RGBLED_NUM, HSV_BLUE},   RGBLIGHT_END_SEGMENTS},
+    [L_NUM] =  {{0, RGBLED_NUM, HSV_ORANGE}, RGBLIGHT_END_SEGMENTS},
+    [L_FUNC] = {{0, RGBLED_NUM, HSV_YELLOW}, RGBLIGHT_END_SEGMENTS},
+    [L_MOUSE]= {{0, RGBLED_NUM, HSV_PURPLE}, RGBLIGHT_END_SEGMENTS},
+};
+
+// This array needs pointers, :/
+const rgblight_segment_t* const PROGMEM my_rgb_layers[] = {
+    my_rgb_segments[L_QWER],
+    my_rgb_segments[L_WASD],
+    my_rgb_segments[L_COLM],
+    my_rgb_segments[L_EXTD],
+    my_rgb_segments[L_NUM],
+    my_rgb_segments[L_FUNC],
+    my_rgb_segments[L_MOUSE],
+};
+
+_Static_assert(sizeof(my_rgb_layers) / sizeof(my_rgb_layers[0]) ==
+        sizeof(my_rgb_segments) / sizeof(my_rgb_segments[0]),
+        "Number of rgb_segment definitions does not match up!");
+#endif
+
+#ifdef COMBO_ENABLE
+enum combo_events {
+  C_AUML,
+  C_OUML,
+  C_UUML,
+  C_SZ,
+  C_CBR,
+  C_PRN,
+  C_BRC,
+};
+
+// Maybe use this?
+// #define COMBO_ONLY_FROM_LAYER L_COLM
+
+// The official way has way too much duplication and intermediate names for my taste...
+const uint16_t PROGMEM my_action_combos[][3] = {
+    [C_AUML] = {KC_G_A, KC_W, COMBO_END},
+    [C_OUML] = {KC_G_O, KC_Y, COMBO_END},
+    [C_UUML] = {KC_C_N, KC_U, COMBO_END},
+    [C_SZ]   = {KC_S_S, KC_Z, COMBO_END},
+    [C_CBR]  = {KC_COLN, KC_LCBR, COMBO_END},
+    [C_PRN]  = {KC_LCBR, KC_LPRN, COMBO_END},
+    [C_BRC]  = {KC_LPRN, KC_LBRC, COMBO_END},
+};
+const uint16_t PROGMEM my_combos[][4] = {
+    {KC_LPRN, KC_F, KC_P, COMBO_END},
+    {KC_RPRN, KC_C, KC_D, COMBO_END},
+    {KC_LCBR, KC_W, KC_F, COMBO_END},
+    {KC_RCBR, KC_X, KC_C, COMBO_END},
+    {KC_TAB,  KC_G_A, KC_A_R, COMBO_END},
+    {KC_BSLS, KC_B, KC_J, COMBO_END},  // remove this?
+    {KC_BSLS, KC_F, KC_U, COMBO_END},
+    {LSFT(KC_BSLS), KC_P, KC_L, COMBO_END},
+    {KC_MINUS, KC_C_T, KC_C_N, COMBO_END},
+    {LSFT(KC_MINUS), KC_D, KC_H, COMBO_END},
+    {KC_GRV,  KC_Q, KC_W, COMBO_END},  // remove this?
+    {KC_GRV,  KC_C, KC_COMM, COMBO_END},
+    {LSFT(KC_GRV), KC_G, KC_M, COMBO_END},
+    {KC_BTN3, KC_BTN1, KC_BTN2, COMBO_END},
+    {KC_BTN1, KC_BTN2, KC_BTN3, COMBO_END},
+};
+
+const uint16_t COMBO_LEN = sizeof(my_action_combos) / sizeof(my_action_combos[0]) + sizeof(my_combos) / sizeof(my_combos[0]);
+
+#define MY_ACTION_COMBO(ck) \
+    [ck] = { .keys = &(my_action_combos[ck][0]) }
+#define MY_COMBO(ck) \
+    { .keys = &(my_combos[ck][1]), .keycode = my_combos[ck][0] }
+
+// NOTE: while my_combos can live in PROGMEM, the key_combos data also
+// contains state that is tweaked at runtime, so we need to indirect. Ugh.
+#define COMBO_STATICALLY
+#ifdef COMBO_STATICALLY
+// TODO: fill this at runtime with a loop?
+combo_t key_combos[] = {
+  MY_ACTION_COMBO(0),
+  MY_ACTION_COMBO(1),
+  MY_ACTION_COMBO(2),
+  MY_ACTION_COMBO(3),
+  MY_ACTION_COMBO(4),
+  MY_ACTION_COMBO(5),
+  MY_ACTION_COMBO(6),
+  MY_COMBO(0),
+  MY_COMBO(1),
+  MY_COMBO(2),
+  MY_COMBO(3),
+  MY_COMBO(4),
+  MY_COMBO(5),
+  MY_COMBO(6),
+  MY_COMBO(7),
+  MY_COMBO(8),
+  MY_COMBO(9),
+  MY_COMBO(10),
+  MY_COMBO(11),
+  MY_COMBO(12),
+  MY_COMBO(13),
+  MY_COMBO(14),
+};
+
+_Static_assert(sizeof(key_combos) / sizeof(key_combos[0]) ==
+        (sizeof(my_action_combos) / sizeof(my_action_combos[0]) + sizeof(my_combos) / sizeof(my_combos[0])),
+        "Number of combo definitions does not match up!");
+#else
+combo_t key_combos[sizeof(my_action_combos) / sizeof(my_action_combos[0]) + sizeof(my_combos) / sizeof(my_combos[0])];
+#endif
+
+void process_combo_event(uint16_t combo_index, bool pressed) {
+    switch (combo_index) {
+        case C_AUML:
+            if (pressed) {
+                tap_code16(KC_RALT);
+                tap_code16(LSFT(KC_QUOT));
+                tap_code16(KC_A);
+            }
+            break;
+        case C_OUML:
+            if (pressed) {
+                tap_code16(KC_RALT);
+                tap_code16(LSFT(KC_QUOT));
+                tap_code16(KC_O);
+            }
+            break;
+        case C_UUML:
+            if (pressed) {
+                tap_code16(KC_RALT);
+                tap_code16(LSFT(KC_QUOT));
+                tap_code16(KC_U);
+            }
+            break;
+        case C_SZ:
+            if (pressed) {
+                tap_code16(KC_RALT);
+                tap_code16(KC_S);
+                tap_code16(KC_S);
+            }
+            break;
+        case C_CBR:
+            if (pressed) {
+                tap_code16(KC_LCBR);
+                tap_code16(KC_RCBR);
+                tap_code16(KC_LEFT);
+            }
+            break;
+        case C_PRN:
+            if (pressed) {
+                tap_code16(KC_LPRN);
+                tap_code16(KC_RPRN);
+                tap_code16(KC_LEFT);
+            }
+            break;
+        case C_BRC:
+            if (pressed) {
+                tap_code16(KC_LBRC);
+                tap_code16(KC_RBRC);
+                tap_code16(KC_LEFT);
+            }
+            break;
+    }
+}
+#endif
+
+void keyboard_post_init_user(void) {
+#ifndef KEYBOARD_preonic_rev3
+    default_layer_set(1ul << L_COLM);
+#endif
+#ifdef RGBLIGHT_LAYERS
+    // Enable the LED layers
+    rgblight_layers = my_rgb_layers;
+    rgblight_set_layer_state(0, true);
+#endif
+#if defined(COMBO_ENABLE) && !defined(COMBO_STATICALLY)
+    uint8_t i = 0;
+    for (; i < sizeof(my_action_combos) / sizeof(my_action_combos[0]); i++) {
+        key_combos[i].keys = &(my_action_combos[i][0]);
+    }
+    for (uint8_t j = 0; j < sizeof(my_combos) / sizeof(my_combos[0]); j++, i++) {
+        key_combos[i].keycode = my_combos[j][0];
+        key_combos[i].keys = &(my_combos[j][1]);
+    }
+#endif
+}
+
+uint16_t key_timer;
+bool delkey_registered;
+bool num_layer_was_used;
+bool extd_layer_was_used;
+// These keep state about the long-press-means-umlaut keys.
+bool auml_pressed;
+bool ouml_pressed;
+bool uuml_pressed;
+
+void maybe_send_umlaut(uint16_t keycode, bool *is_pressed) {
+    // Some other key did _not_ already re-arm this key, so now we need to do
+    // that ourselves.
+    if (*is_pressed) {
+        *is_pressed = false;
+        // If released within the timer, then just KC_A, KC_O, KC_U
+        if (timer_elapsed(key_timer) < TAPPING_TERM) {
+            tap_code16(keycode);
+        } else {
+            tap_code16(KC_RALT);
+            tap_code16(LSFT(KC_QUOT));
+            tap_code16(keycode);
+        }
+    }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    // TODO: why not use key_timer here? is it dynamic or not?
+    static uint16_t extd_layer_timer;
+    if (layer_state_is(L_EXTD) && record->event.pressed) {
+        extd_layer_was_used = true;
+    }
+    if (layer_state_is(L_NUM) && record->event.pressed) {
+        num_layer_was_used = true;
+    }
+
+    // An umlaut key was pressed previously (but will only emit the key on
+    // release), but we've pressed a different key now, so fire the regular key,
+    // re-arm it and continue with whatever actual key was pressed just now.
+    if (record->event.pressed) {
+        if (auml_pressed) {
+            tap_code16(KC_A);
+            auml_pressed = false;
+        }
+        if (ouml_pressed) {
+            tap_code16(KC_O);
+            ouml_pressed = false;
+        }
+        if (uuml_pressed) {
+            tap_code16(KC_U);
+            uuml_pressed = false;
+        }
+    }
+
+    switch (keycode) {
+        // From https://github.com/qmk/qmk_firmware/issues/6053
+    case LT_EXTD_ESC:
+        if (record->event.pressed) {
+            extd_layer_was_used = false;
+            extd_layer_timer = timer_read();
+            layer_on(L_EXTD);
+        } else {
+            layer_off(L_EXTD);
+            unregister_mods(MOD_BIT(KC_LALT));   // undo what ALT_TAB might've set
+            // NOTE: need to track whether we made use of the extd layer and
+            // that all happened within the tapping term. Otherwise we'd emit
+            // that layer key code _plus_ an extra Esc.
+            if (timer_elapsed(extd_layer_timer) < TAPPING_TERM && !extd_layer_was_used) {
+                tap_code(KC_ESC);
+            }
+        }
+        return true;
+    case LT_NUM_BSPC:
+        if (record->event.pressed){
+            num_layer_was_used = false;
+            extd_layer_timer = timer_read();
+            layer_on(L_NUM);
+        } else {
+            layer_off(L_NUM);
+            // NOTE: Custom LT method so that any press of a key on that layer will prevent the backspace.
+            if (timer_elapsed(extd_layer_timer) < TAPPING_TERM && !num_layer_was_used) {
+                tap_code(KC_BSPC);
+            }
+        }
+        return true;
+    case LT_MOUSE_ALT_SHIFT_INS:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            layer_on(L_MOUSE);
+        } else {
+            layer_off(L_MOUSE);
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                tap_code16(LALT(LSFT(KC_INS)));
+            }
+        }
+        return true;
+    case LT_FUNC_SHIFT_INS:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            layer_on(L_FUNC);
+        } else {
+            layer_off(L_FUNC);
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                tap_code16(LSFT(KC_INS));
+            }
+        }
+        return true;
+#if 1
+        /* Looks like PERMISSIVE_HOLD on LT and OSM doesn't work properly. This
+         * is probaby https://github.com/qmk/qmk_firmware/issues/8971
+         */
+    case OSM_GUI:
+        /* OSM(MOD_LGUI) is delaying the event, but I need immediate triggering
+         * of the modifier to move windows around with the mouse. If only
+         * tapped, however, have it be a win OSM */
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            register_mods(MOD_BIT(KC_LGUI));
+        } else {
+            unregister_mods(MOD_BIT(KC_LGUI));
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                add_oneshot_mods(MOD_BIT(KC_LGUI));
+            } else {
+                del_oneshot_mods(MOD_BIT(KC_LGUI));
+            }
+        }
+        return true;
+        // Why do I have to roll my own? It seems the original ones work on
+        // keyrelease, at which time I might have let go of the layer tap
+        // already, so I cannot roll them fast...
+    case OSM_SFT:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            register_mods(MOD_BIT(KC_LSFT));
+        } else {
+            unregister_mods(MOD_BIT(KC_LSFT));
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                add_oneshot_mods(MOD_BIT(KC_LSFT));
+            } /*else {
+                del_oneshot_mods(MOD_BIT(KC_LSFT));
+            }*/
+        }
+        return true;
+    case OSM_CTL:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            register_mods(MOD_BIT(KC_LCTL));
+        } else {
+            unregister_mods(MOD_BIT(KC_LCTL));
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                add_oneshot_mods(MOD_BIT(KC_LCTL));
+            } /*else {
+                del_oneshot_mods(MOD_BIT(KC_LCTL));
+            }*/
+        }
+        return true;
+    case OSM_ALT:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            register_mods(MOD_BIT(KC_LALT));
+        } else {
+            unregister_mods(MOD_BIT(KC_LALT));
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                add_oneshot_mods(MOD_BIT(KC_LALT));
+            } /*else {
+                del_oneshot_mods(MOD_BIT(KC_LALT));
+            }*/
+        }
+        return true;
+#else
+#define OSM_ALT OSM(MOD_LALT)
+#define OSM_CTL OSM(MOD_LCTL)
+#define OSM_GUI OSM(MOD_LGUI)
+#define OSM_SFT OSM(MOD_LSFT)
+#endif
+    // Obsoleted by using combos for umlauts now.
+    case KC_A_AE:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            auml_pressed = true;
+        } else {
+            maybe_send_umlaut(KC_A, &auml_pressed);
+        }
+        break;
+    case KC_O_OE:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            ouml_pressed = true;
+        } else {
+            maybe_send_umlaut(KC_O, &ouml_pressed);
+        }
+        break;
+    case KC_U_UE:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            uuml_pressed = true;
+        } else {
+            maybe_send_umlaut(KC_U, &uuml_pressed);
+        }
+        break;
+    case MINS_UNDSCR:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+        } else {
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                // Can't send KC_KP_MINUS, it doesn't compose to, say →
+                tap_code16(KC_MINUS);
+            } else {
+                tap_code16(KC_UNDERSCORE);
+            }
+        }
+        break;
+    case ALT_TAB:
+        if (record->event.pressed) {
+            register_mods(MOD_BIT(KC_LALT));
+            tap_code16(KC_TAB);
+        }
+        break;
+    case INS_HARD:
+        // Do Alt-Shift-Ins first to have xdotool copy from SELECTION to CLIPBOARD, then Shift-Ins to paste.
+        if (record->event.pressed) {
+            tap_code16(LSFT(LALT(KC_INS)));
+        } else {
+            tap_code16(LSFT(KC_INS));
+        }
+        break;
+    case SHIFT_INS:
+        if (record->event.pressed) {
+            // when keycode is pressed
+            key_timer = timer_read();
+            // Shift when held ...
+            register_mods(MOD_BIT(KC_RSFT));
+        } else {
+            // If released within the timer, then Shift+Ins
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                tap_code16(KC_INS);
+            }
+            unregister_mods(MOD_BIT(KC_RSFT));
+        }
+        break;
+    case ALT_SHIFT_INS:
+        if (record->event.pressed) {
+            key_timer = timer_read();
+            // Shift when held ...
+            register_mods(MOD_BIT(KC_LSFT));
+        } else {
+            // If released within the timer, then Shift+Alt+Ins
+            if (timer_elapsed(key_timer) < TAPPING_TERM) {
+                register_mods(MOD_BIT(KC_LALT));
+                tap_code16(KC_INS);
+            }
+            // Note: this makes xev(1) see KeyPress for Meta_L but KeyRelease for Alt_L
+            unregister_mods(MOD_BIT(KC_LSFT) | MOD_BIT(KC_LALT));
+        }
+        break;
+/*
+ * Obsoleted by making tmux understand Ctrl-(Shift)-Tab natively.
+    case TM_NEXT:
+        if (record->event.pressed) SEND_STRING(SS_LCTRL("a") "n");
+        break;
+    case TM_PREV:
+        if (record->event.pressed) SEND_STRING(SS_LCTRL("a") "p");
+        break;
+*/
+        // TODO: use key overrides to turn, e.g. Win+Ctrl-Tab into VIM_NEXT.
+        // Not sure why Ctrl-Pgup works in vim, but not in vim-inside-tmux.
+    case VIM_NEXT:
+        if (record->event.pressed) SEND_STRING(SS_TAP(X_ESC) SS_TAP(X_G) SS_TAP(X_T));
+        break;
+    case VIM_PREV:
+        if (record->event.pressed) SEND_STRING(SS_TAP(X_ESC) SS_TAP(X_G) SS_LSFT("t"));
+        break;
+    case WIN_LEFT:
+        if (record->event.pressed) SEND_STRING(SS_LCTRL("w") SS_TAP(X_H));
+        break;
+    case WIN_DN:
+        if (record->event.pressed) SEND_STRING(SS_LCTRL("w") SS_TAP(X_J));
+        break;
+    case WIN_UP:
+        if (record->event.pressed) SEND_STRING(SS_LCTRL("w") SS_TAP(X_K));
+        break;
+    case WIN_RGHT:
+        if (record->event.pressed) SEND_STRING(SS_LCTRL("w") SS_TAP(X_L));
+        break;
+    }
+
+    return true;
+}
+
+#ifdef LEADER_ENABLE
+LEADER_EXTERNS();
+
+void matrix_scan_user(void) {
+  LEADER_DICTIONARY() {
+    leading = false;
+    leader_end();
+
+#ifdef UCIS_ENABLE
+    SEQ_ONE_KEY(KC_U) {
+      qk_ucis_start();
+    }
+#endif
+    SEQ_ONE_KEY(KC_H) {
+      send_unicode_string("ᕕ( ᐛ )ᕗ");  // happy
+    }
+    SEQ_ONE_KEY(KC_D) {
+      send_unicode_string("ಠ_ಠ");  // disapproval
+    }
+    SEQ_ONE_KEY(KC_L) {
+      send_unicode_string("( ͡° ͜ʖ ͡°)");  // lenny
+    }
+    SEQ_ONE_KEY(KC_S) {
+      send_unicode_string("¯\\_(ツ)_/¯");  // shrug
+    }
+    // tableflip (LEADER - TF)
+    SEQ_TWO_KEYS(KC_T, KC_F) {
+      //set_unicode_input_mode(UC_LNX);
+      //send_unicode_hex_string("0028 30CE 0CA0 75CA 0CA0 0029 30CE 5F61 253B 2501 253B");
+      send_unicode_string("(╯°□°）╯︵ ┻━┻");
+    }
+    // untableflip
+    SEQ_THREE_KEYS(KC_U, KC_T, KC_F) {
+      //set_unicode_input_mode(UC_LNX);
+      //send_unicode_hex_string("0028 30CE 0CA0 75CA 0CA0 0029 30CE 5F61 253B 2501 253B");
+      send_unicode_string("┬─┬ノ( º _ ºノ)");
+    }
+  }
+}
+#endif
+
+#ifdef UCIS_ENABLE
+// 3 codepoints at most, otherwise increase UCIS_MAX_CODE_POINTS
+const qk_ucis_symbol_t ucis_symbol_table[] = UCIS_TABLE(
+    UCIS_SYM("poop", 0x1F4A9),                // 💩
+    UCIS_SYM("rofl", 0x1F923),                // 🤣
+    UCIS_SYM("look", 0x0CA0, 0x005F, 0x0CA0)  // ಠ_ಠ
+);
+#endif
diff --git a/users/uqs/uqs.h b/users/uqs/uqs.h
new file mode 100644
index 000000000..f8b30caf7
--- /dev/null
+++ b/users/uqs/uqs.h
@@ -0,0 +1,77 @@
+// Copyright 2022 Ulrich Spörlein (@uqs)
+// SPDX-License-Identifier: GPL-2.0-or-later
+// vi:et sw=4:
+#pragma once
+
+#include QMK_KEYBOARD_H
+
+enum layers {
+    L_QWER = 0,
+    L_WASD,  // wasd gaming
+    L_COLM,  // Colemak DHm
+    L_EXTD,
+    L_NUM,
+    L_FUNC,
+    L_MOUSE,
+    L_LAST, // unused
+};
+
+#ifdef VIA_ENABLE
+_Static_assert(DYNAMIC_KEYMAP_LAYER_COUNT >= L_LAST, "VIA enabled, but not enough DYNAMIC_KEYMAP_LAYER_COUNT for all layers");
+#endif
+
+#define KC_CTAB LCTL(KC_TAB)
+#define KC_SCTAB LCTL(LSFT(KC_TAB))
+
+// Custom single-key codes, see uqs.c for the combos.
+enum custom_keycodes {
+    SHIFT_INS = SAFE_RANGE,
+    ALT_SHIFT_INS,
+    INS_HARD,
+    KC_A_AE,
+    KC_O_OE,
+    KC_U_UE,
+    MINS_UNDSCR,  // obsoleted by combos, remove this!
+    TM_NEXT,
+    TM_PREV,
+    VIM_NEXT,
+    VIM_PREV,
+    WIN_LEFT,
+    WIN_RGHT,
+    WIN_UP,
+    WIN_DN,
+    LT_EXTD_ESC,
+    LT_NUM_BSPC,
+    LT_MOUSE_ALT_SHIFT_INS,
+    LT_FUNC_SHIFT_INS,
+    OSM_GUI,
+    OSM_SFT,
+    OSM_CTL,
+    OSM_ALT,
+    ALT_TAB,
+};
+
+#ifndef LEADER_ENABLE
+#define KC_LEAD KC_NO
+#endif
+
+// Shorter names
+#define MS_WHDN KC_MS_WH_DOWN
+#define MS_WHUP KC_MS_WH_UP
+#define MS_WHLEFT KC_MS_WH_LEFT
+#define MS_WHRGHT KC_MS_WH_RIGHT
+
+// GASC/◆⎇⇧⎈ home row mod, read all about it here:
+// https://precondition.github.io/home-row-mods
+// Left-hand home row mods
+#define KC_G_A LGUI_T(KC_A)
+#define KC_A_R LALT_T(KC_R)
+#define KC_S_S LSFT_T(KC_S)
+#define KC_C_T LCTL_T(KC_T)
+
+// Right-hand home row mods
+#define KC_C_N RCTL_T(KC_N)
+#define KC_S_E RSFT_T(KC_E)
+#define KC_A_I LALT_T(KC_I)  // RALT is special, it's AltGr and my compose key under Win (layout UScmpse) and *nix (setxkbmap -option compose:ralt)
+#define KC_G_O RGUI_T(KC_O)
+