[Title — up to about 60 characters]

This is a sample post so the writing pages have something to render. Delete it when you write the real thing.

[Section heading]

Body copy renders at 17px on a 1.75 line height, capped at 68 characters, with inline links, bold text, and inline code.

• Unordered list items keep the same rhythm as body copy.
• Markers sit in the gutter so the text edge stays straight.

The model isn't the work. Getting it used is the work.

[Sub-heading]

1. Numbered steps for anything procedural.
2. They inherit the same spacing as the unordered list.

import pandas as pd

spend = pd.read_parquet("spend.parquet")
weekly = spend.groupby(["week", "channel"])["cost"].sum()