Math, physics, learning and LEDs. Literally. I learned a lot about formulas, current and voltage, how everything works, etc. My brain power is lost right now so I will paste the document I made summarizing everything I learned. I also added the LED, finally. Coil to LA/LB, GND to ground, FD left open or wired to an MCU/LED if the field-detect feature is wanted, and EP (exposed pad) left open/floating per the datasheet.

No pours, no wires, no NOTHING near the coil and chip.
The chip can be near the coil.
LA/LB can be wired freely to the chip.
nfc is interesting

The basic LED resistor formula:

R = (V_supply - V_LED) / I_desired

Vf - The forward voltage is the voltage it needs for a given current.
If - The forward current is the current actually flowing through the LED. Controls brightness. This is the value you target. Everything else in the calculation exists to make sure this number ends up where you want it.
They are related to each other. When more current flows through, Vf goes up as well.

The current is the same in every part of the circuit.
The total available voltage HAS to be spent between the resistor and the LED.

Formula: R = (V_supply − V_LED) / I_desired

V_supply: the total voltage available from the source (VOUT, ~2V in this case)
V_LED (Vf): the voltage the LED itself consumes at YOUR CHOSEN CURRENT!!
(V_supply − V_LED): whatever voltage is “left over” after the LED takes its share, this is the voltage the resistor needs to drop
I_desired (If): the current you want flowing through the LED (and therefore through the resistor too, since they’re in series)
R: the resistance needed so that this leftover voltage, divided by this resistance, produces exactly the target current, this comes directly from Ohm’s Law (V = I × R, rearranged to R = V / I)

Finished Formula: R = (2 − 1.7) / 0.002A = 150 ——> R = 150 Ohms

“mA” MUST BE CONVERTED TO “A”

If Vf (toll) was 1.65: (LED needs 1.65V at 2mA)

R = 175 Ohms

If Vf was 1.75: (LED needs 1.75V at 2mA)

R = 125 Ohms

If Vf was 1.8: (LED needs 1.8V at 2mA)

R = 100 Ohms

If the LED consumes more voltage, the resistor needs a smaller value, and if the LED consumes less voltage, the resistor needs a higher value

PART THAT WILL BE USED::

TLMS1000

COLOR: RED
LOW CURRENT
Vf for 2mA = approx. 1.75, so R = 125 Ohms