Write my LinkedIn About section

Your profile summary is empty, or it is three sentences of job-title soup.

Write my LinkedIn About section from the notes below. Around 150 words, first person, plain language.

Requirements:
- Open with what I actually do and for whom, in one sentence a stranger would understand.
- Second paragraph: two or three concrete things I have built, shipped, or changed, with real outcomes from my notes.
- Third: what I am interested in working on next, and what people should contact me about.
- No third-person self-description, no "results-driven professional", no lists of adjectives.
- Short sentences. It is read on a phone.

Then give me two alternative opening lines with a different angle, and say which of the three you would keep and why. Do not add achievements I did not mention.

Notes about me:

Profiles and bios. The public-facing versions of you: LinkedIn, short bios and written-up portfolio projects.