All code: Written by cheapie

All textures: Hand-drawn by cheapie using GIMP

Sounds:
* celevator_controller_start.ogg and celevator_controller_stop.ogg
Contactor noises from inside a Speedprint SP710avi stencil printer,
which happens to use a nearly identical contactor to the brake panels in the Montgomery Miprom 21.
Recorded and edited by cheapie.

* celevator_cabinet_open.ogg and celevator_cabinet_close.ogg
From opening/closing a metal storage cabinet at work.
Recorded and edited by cheapie.

* celevator_pi_beep.ogg
Synthesized in Audacity by cheapie.

* celevator_car_start.ogg, celevator_car_run.ogg, and celevator_car_stop.ogg
Originally from "Elevator_Beeps & Opens.wav" by Brentanamo on Freesound, originally licensed under CC0.
https://freesound.org/people/Brentanamo/sounds/421599/
Edited by cheapie.

* celevator_chime_up.ogg and celevator_chime_down.ogg
Originally from "elevator bell dings closeup nice.flac" by kyles on Freesound, originally licensed under CC0.
https://freesound.org/people/kyles/sounds/453980/
Edited by cheapie.

* celevator_door_close.ogg, celevator_door_open.ogg, and celevator_door_reverse.ogg
Originally from "elevator doors open close.wav" by omsomaque on Freesound, originally licensed under CC0.
https://freesound.org/people/omsomaque/sounds/584911/
Edited by cheapie.

* celevator_drive_run.ogg
Originally from "transformer at night.wav" by ideaph on Freesound, originally licensed under CC0.
https://freesound.org/people/ideaph/sounds/641208/
Edited by cheapie.

* celevator_nudge.ogg
Originally from "Buzz Buzzer Buzzing Sound Effect" by deleted_user_7146007 on Freesound, originally licensed under CC0.
https://freesound.org/people/deleted_user_7146007/sounds/383352/
Edited by cheapie.

* celevator_brake_apply.ogg, celevator_brake_release.ogg, celevator_motor_slow.ogg, celevator_motor_fast.ogg, celevator_motor_accel.ogg, and celevator_motor_decel.ogg
Originally from "Fujitec Traction Elevator Machine Room" by ElevDSM on YouTube, explicit permission has been obtained from the author to use these sounds here and distribute them under mod's license.
https://www.youtube.com/watch?v=0rPZrkEreAo
Edited by cheapie.