Productive Timer Raspberry Pi Pico

this is for picobuilders chalenge
With this productivity timer, procrastination is no longer a problem.
Here are the features:

.Timer
.Stopwatch
.Game
.Zen Breath
.Metronome
.Settings
.Info
.Data Graph

Materials I Used
.3D‑printed case
.3D‑printed potentiometer knob (from Idee 3D (Alex Torres) on Printables
.3D‑printed mounting plate
.Raspberry Pi Pico (2020)
.EC11 rotary encoder
.0.96" I2C OLED screen (128 × 96 px)
.Wires

Pin Connections
OLED Screen (I2C)
.Connect GND of the OLED to any GND pin on the Pico (e.g., Pin 38).

.Connect VCC of the OLED to the 3V3 OUT pin on the Pico (Pin 36).

.Connect SDA of the OLED to GPIO 4 on the Pico (Pin 6).

.Connect SCL of the OLED to GPIO 5 on the Pico (Pin 7).

EC11 Rotary Encoder
.Connect GND of the encoder to any GND pin on the Pico (e.g., Pin 18).

.The + / VCC pin can technically be left unconnected (the code uses internal pull‑ups), but I recommend connecting it anyway.

.Connect CLK (A) to GPIO 15 on the Pico (Pin 20).

.Connect DT (B)