This portown

You wash in (or sail in depending on PC types and backgrounds) to a town you had no intention of finding. Looking around you can tell this is a crude settlement with a booming economy. Several races passing in every direction, all seemingly headed somewhere. Your group seems to be the only ones that look out of place, as numerous travelers and ships continue docking for trade.

Hello! This will be a campaign with a decent mix of lore-building, character development, and above all else, freedom.
The setting comes from a campaign I built for a few one-off starter adventures to get my friends interested, but as they tend to do, these became on-going worlds. Lucky for you allows for some major flexibility, as the NPCs and surrounding areas have already been developed.

I am fine with any major builds including the newer tasha's work. If you would like a pre-built PC i can supply, but i implore your to invent your own. I will CONSIDER some simple homebrew, so long as it behaves like other official material. As DM i reserve the right to say no, but i dont mind an attempt to persuade me. I love the creative nature of DND and i encourage it!
On this note, I am big on "if you can rationalize it, i will let you roll for it."
Want to build a house? okay, roll and ill give you your requirements.
Want to persuade that noble to give you all their money? okay, roll-play your persuasion, then roll.

Important info:
• 5E adventure
• Players will start at LV1 with 1 free magic item & 1 free trinket
Possible Game Changers
• RP is rewarded with Inspiration
• Advantage from different sources CAN STACK
• Physics CAN be argued
• Open world sandbox.
• Nat20/Nat1 have respectively Epic outcomes. not success/fumble, but sliding scale.
(ie: if an acrobat rolls a 1 to climb a wall, they may miss their initial footing and fail, but if a regular dude rolls a 1 they will likely fall and take 1d4.
on the other side, if the acrobat rolls a 20, it becomes flawless like second nature, but the normal guy may get lucky or have a genius solution to climb where even a 19 wouldnt be normally possible)