What is this?
A large, technically-oriented collection of PDFs — papers, specs, decks and manuals — kept as a public GitHub repo, with a companion site for browsing and searching it at tpn.github.io/pdfs.
Is it a website, or just a dump of PDF files on GitHub?
Both: the PDFs live in the Git repository, and the repo deploys a GitHub Pages site (via its site.yml workflow) that indexes the whole collection so you can browse and search it in a browser.
How do I get the PDFs?
Nothing to install — open https://tpn.github.io/pdfs to browse and read in the browser; to keep a local copy, clone or download the repo and open the PDFs directly.
What should I expect before diving in?
It is a raw, growing archive rather than a curated course — there is no guided reading path, and the repo states no license, so treat the documents as third-party reference material.
Do I need to be deeply technical to get value from it?
It skews technical: the material is computer-science and systems-programming reading (papers, specs, manuals), so it is most useful to engineers, researchers and students.
Can I use it offline?
Yes — once the repo is cloned, the PDFs live on your machine and read fine offline; only the browse-and-search site needs an internet connection.
What kinds of documents are in the collection?
Conference papers, technical specs, slide decks and manuals — mostly computer-science and systems-programming material accumulated since the repo was created in 2014.
Is the collection still growing?
The repository is not archived and has been maintained since June 2014, so it remains a living collection; the commit history shows the newest additions.
Why keep it on GitHub instead of a file host?
Git hosting keeps the archive versioned and publicly cloneable, while GitHub Pages turns the same repo into a free browse-and-search website.
What are similar projects?
HowToLiveBetter, opensource.guide, cp-algorithms, zju-icicles, cpu-performance-engineering, Best-websites-a-programmer-should-visit-zh, papers-we-love, awesome-database-learning
Which topics is it in?
technical-documentation, engineering, archive, github-pages, website, papers, systems-programming, search, computer-science, pdf, reference, documentation