enriquelopI put all 8,642 Spanish laws in Git – every reform is a commit
I built a pipeline that converts all Spanish state legislation into version-controlled Markdown. Each law is a file, each reform is a real git commit with the historical date. 8,642 laws, 27,866 commits.
The idea: legislation is just patches on patches on patches. Git already solves this. Instead of reading "strike paragraph 3 and replace with...", you get an actual diff.
The repo is the product. Browse any law, git log to see its full reform history, git diff to see exactly what changed.
Built the pipeline in ~4 hours with Claude Code. Source is BOE (Spain's official gazette) consolidated legislation API.
Exploring whether there's a business here — structured legislation API for legaltech/compliance, or just a useful open dataset. Curious what HN would build with this data.
Laws intent are often clarified in courts through judgments. If you can overlay the judgements on top of the corresponding law, at correct points in time, I think that will have value. It might, for example, show which laws were referenced the most and which needed to be clarified the most. It might give insights into what legal language constructs stood the test of time and which had to be repeatedly clarified.
That's true, but it might not be as important here.
Spain is not a country with a Common Law legal system entirely like the US or the UK. They have a civil law system where prior court judgement does not form a strictly binding precedent. Prior judgements can be important, but case law is not really a thing.
Laws are often cascaded as well. Specifically in this case, Spain is subdivided into Comunidades Autonomas - each have their own elected parliament. And inside those are cities with their own local laws.
So while this project does track laws, is there any facility to determine which laws from which bodies are relevant to a specific activity in a specific location?