Hints for using emacs' ediff mode to compare files.

Enchive is a tool to encrypt files to yourself for long-term archival. It's a focused, simple alternative to more complex solutions such as GnuPG or encrypted filesystems. Enchive has no external dependencies and is trivial to build for local use. Portability is emphasized over performance.

Supported platforms: Linux, BSD, macOS, Windows

The name is a portmanteau of "encrypt" and "archive," pronounced en'kīv.

Files are secured with ChaCha20, Curve25519, and HMAC-SHA256.

Key pairs can be derived from a pass phrase.  See https://github.com/skeeto/passphrase2pgp for a tool to generate gpg key pairs in a similar way.

Website to search for patterns in the first 2e8 decimal digits of π.

Found via rtl-sdr.com, includes adjustment factor which depends on the diameter of the conductors.

Web-based 3D drawing program.

This script intends to sync near-automatically via git in "tracking" repositories where a nice history is not as crucial as having one.
Found via a link on https://orgmode.org/worg/

"What if documentation really lived in the code?

Docstrings are already there. If some narrative glued them together, we'd be able develop and explore the code along with the documentation due to their physical proximity.

With the simplistic tools provided, one may emphasize the narrative as with Literate Programming, but documentation is generated from code, not vice versa, and there is no support for chunking.

Code is first, code must look pretty, documentation is code."

Verifying online identity with cryptography.
Found via Nicolas Martyanoff's page https://www.n16f.net/about/

A new cross-platform browser project, from the author of SerenityOS https://serenityos.org/
Found in c't.

https://www.w3.org/Talks/Tools/Slidy2/ and https://www.w3.org/Tools/Ical2html/,  https://www.w3.org/People/Bos/Hcalproxy/ look interesting.