Substack
substack.com
Longer-form writing and current thinking.
Current writingLong-form notesDirect canonical route
Writing
Curated writing across current essays, older archive pieces, and future site originals.
Use Substack for the current writing channel, Medium for older archive pieces, and this route as the place where selected links and future site-owned essays are organized without mirroring full external articles.
Channels
Start with the current channel, then use the archive when you want older material.
This route stays curated and external-first rather than behaving like an automated import of every profile post.
Medium
pcoletsos.medium.com
Published articles and older writing.
Older essaysHistorical archiveSelected back-catalog
Continue
From writing to engineering proof
Review the technical architecture cases, see the career timeline, or get in touch.