See also the LC filter design tool at https://rf-tools.com/lc-filter/

Unicode Lookup is an online reference tool to lookup Unicode and HTML special characters, by name and number, and convert between their decimal, hexadecimal, and octal bases.

The link points to survey results, those below are about specific ways to manage dotfiles.
  1. https://www.atlassian.com/git/tutorials/dotfiles
  2. https://news.ycombinator.com/item?id=11070797 needs more exploration
  3. https://thoughtbot.com/blog/rcm-for-rc-files-in-dotfiles-repos
  4. https://blog.tfnico.com/2014/03/managing-dot-files-with-vcsh-and-myrepos.html found in (2)

Lzip is a lossless data compressor with a user interface similar to the one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip -0) or compress most files more than bzip2 (lzip -9). Decompression speed is intermediate between gzip and bzip2. Lzip is better than gzip and bzip2 from a data recovery perspective. Lzip has been designed, written and tested with great care to replace gzip and bzip2 as the standard general-purpose compressed format for unix-like systems.
The lzip file format is designed for data sharing and long-term archiving, taking into account both data integrity and decoder availability:
- The lzip format provides very safe integrity checking and some data recovery means. The lziprecover program can repair bit flip errors (one of the most common forms of data corruption) in lzip files, and provides data recovery capabilities, including error-checked merging of damaged copies of a file.
- The lzip format is as simple as possible (but not simpler). The lzip manual provides the source code of a simple decompressor along with a detailed explanation of how it works, so that with the only help of the lzip manual it would be possible for a digital archaeologist to extract the data from a lzip file long after quantum computers eventually render LZMA obsolete.
- Additionally the lzip reference implementation is copylefted, which guarantees that it will remain free forever.
The suffix .lz is used for files compressed with lzip.

See https://lists.dyne.org/lurker/message/20181020.205455.fbab5607.en.html for negative claims about Lzip.

Rclone is a command line program to sync files and directories to and from a number of cloud storage services, including
- Google Drive
- Nextcloud

GNSS Positioning Performance Monitor.

Article describing how to plot with Python, Matplotlib & Pandas.

IDEAS to INTEGRATED CIRCUITS
Collection of stories, examples of IC designs and circuits

Coccinelle is a program matching and transformation engine which provides the language SmPL (Semantic Patch Language) for specifying desired matches and transformations in C code. Coccinelle was initially targeted towards performing collateral evolutions in Linux. Such evolutions comprise the changes that are needed in client code in response to evolutions in library APIs, and may include modifications such as renaming a function, adding a function argument whose value is somehow context-dependent, and reorganizing a data structure. Beyond collateral evolutions, Coccinelle is successfully used (by us and others) for finding and fixing bugs in systems code.

How to use (GNU) make.