Reach data engineers mid-build.
Your line shows in the terminal while dbt, cargo, docker, gradle, BigQuery and Snowflake jobs, and Claude Code / Codex sessions run — the one moment a developer is guaranteed to be watching and guaranteed to be idle. No cookies, no retargeting, no browser. One dim, clearly-labeled line.
Why this inventory is different
Command-level targeting: buy only the developers running dbt, or only Rust compiles — segments no other network can sell, derived from the command name alone with zero content read. Verified dwell: a footer during a 15-minute build is continuous attention with no tab to switch away to. Interactive terminals only: we never bill impressions no human is watching — scheduled headless runs don't count, ever.
Format
Pricing
| Unit | Block of 1,000 impressions (5 visible seconds each) |
|---|---|
| Clicks | Billed at 50x the per-impression rate |
| Targeting | By command (dbt, cargo, docker…) or run-of-terminal |
| Launch pricing | Flat monthly founding slots while volume builds; auction later |
Get a founding slot
Email ads@backfill.sh with your one-liner and target commands. Founding advertisers lock launch pricing for 12 months.