bimd scans a Git repository, finds its first commit date, and tells you which AI era your project was born in — complete with the models that existed at the time and sarcastic boomer-developer commentary.

Installation

pip install backinmyday

Requires Python 3.10+

Getting Started

Scan the current repo

bimd scan .

 ____             _    ___       __  __       ____
| __ )  __ _  ___| | _|_ _|_ __ |  \/  |_   _|  _ \  __ _ _   _
|  _ \ / _` |/ __| |/ /| || '_ \| |\/| | | | | | | |/ _` | | | |
| |_) | (_| | (__|   < | || | | | |  | | |_| | |_| | (_| | |_| |
|____/ \__,_|\___|_|\_\___|_| |_|_|  |_|\__, |____/ \__,_|\__, |
                                         |___/             |___/

  📅  Date analysed  : 2026-05-09
  🏷️   Era detected   : The Agentic Era (agent_era)

       🤖 Models available at the time
┏━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┓
┃ Model                  ┃ Released   ┃ Organization    ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━┩
│ o3-mini                │ 2025-01-31 │ OpenAI          │
│ Claude 3.7 Sonnet      │ 2025-02-24 │ Anthropic       │
│ GPT-4.5                │ 2025-02-27 │ OpenAI          │
│ ...                    │            │                 │
└────────────────────────┴────────────┴─────────────────┘

  👴 "Vibe coding 2.0: now the agent vibe-codes for you
      while you sip your coffee."

Time-travel to any date

bimd era 2019-06-15

Shows the BERT era with GPT-2, XLNet, and a grumpy reminder that "GPT-2 was too dangerous to release."

Generate a badge for your README

bimd badge .

Outputs a shields.io Markdown snippet you can paste into your README:

Switch language

bimd -l fr scan .          # French output
export BIMD_LANG=fr        # or set it globally

Supported: en (default), fr.

Commands

How it works

1. Reads the first commit date from your Git history
2. Matches it against 11 AI eras (pre-Transformer → Agentic Era)
3. Shows 42 verified models with release dates, orgs, and context window sizes
4. Delivers a sarcastic boomer-developer quip for good measure

The era database lives in bimd/eras.yaml. Model dates are sourced from official provider docs — see SOURCES.md for full provenance.

Contributing

PRs welcome! To add models or eras, edit bimd/eras.yaml and run the tests:

pip install -e ".[dev]"
pytest

Links

• PyPI: pypi.org/project/backinmyday
• Docs: fran-cois.github.io/BIMD
• Sources: SOURCES.md — per-model provenance for all 42 models

License

MIT