Every key combination Droppy answers to lives on one page of Settings. Nothing is bound out of the box except what you record, so Droppy never takes a combination you were already using.
Record a shortcut by clicking its Record shortcut pill and pressing the keys. Droppy tells you immediately if the combination is already taken, by another Droppy shortcut or by a system one, so two things never fire on one press. Load defaults fills the page with a sensible set in one click.
What you can bind
ShelfOpen the shelf on whichever screen the cursor is on, and jump straight into a specific widget.
WidgetsOne shortcut per widget, opening it on the shelf from anywhere.
BasketReveal the basket while dragging, and show all baskets to switch between them.
ClipboardOpen history from anywhere, copy + favorite, and item shortcuts that act on the selected entries while the window is open.
NotchReveal the notch, and hold-to-reveal using modifiers only: ⌘ ⌃ ⌥ ⇧ in any combination.
ThunderstormLaunch the Spotlight-style panel from anywhere. It can replace Spotlight's own combination.
RingTap to open then tap again to close, or hold, move to a button and let go to select.
CaptureEvery Element Capture mode, a floating toolbar for mode, timer and exact size, editor keys that work only inside the editor, and show or hide pinned screenshots.
Window SnapHalves, thirds, corners, maximize, center, and moving a window between displays.
OCRSelect a screen area for on-device text recognition from anywhere.
Voice TranscribeStart a recording, or dictate into any text field.
Emoji PickerOpen the picker while keeping your current app focused, or search emoji without typing a trigger.
MeetingsMute, camera, share and end call, recorded per meeting app.
Keyboard brightnessStep the keyboard backlight up or down from any app, press or hold.
Two things worth knowing
Meetings take one combination only. Meeting shortcuts work from any app while that meeting is live. If the meeting app already has the same combination as its own system-wide shortcut, keep only one of them, or each press runs the action twice.
Replacing Spotlight. To give Thunderstorm Spotlight's own combination, open System Settings, Keyboard, Keyboard Shortcuts, Spotlight and disable Apple's binding first. Droppy links you there from the shortcut's row.