Spoilers ahead. Achievement entries describe exact conditions, and a few name when the city's catastrophes strike. Guides contain solutions and may reveal encounters and progression.
Concord Quarter · Wiki
First Hire
Your first shop and a hired hand in nine days.
First Hire Employ a worker at your shop.
Start a Dock-hand. Trade days with Enter until the purse covers the next shop (35 Bits); that took eight days here.
Buy a shop in Confluence Spit (B). A Dock-hand's first shop there restores House Vosswend and pays up to 40 Bits from the citizens.
Hire a hand (H) and trade one more day. The achievement is checked at the end of the day, so it arrives the next morning.
Watch for: a grown heir put to work does not count; it must be a hired hand.
Full run
Forty seconds, from the menu to the achievements screen; one run earns First Hire, A Trusted Hand and The Back Room. The run was played by a scripted player through the game's normal controls, not by a person, and screen-recorded on a fresh profile. The game's own music and effects, no commentary.
The achievements screen at the end of the run: A Trusted Hand, First Hire and The Back Room earned.