Blog entry about changing some settings for ediff, the file compare tool of the Emacs editor.
Investigate the csetq macro, see also the alternative customize-set-variable suggested in the comments.

RTags is a client/server application that indexes C/C++ code and keeps a persistent file-based database of references, declarations, definitions, symbolnames etc. There’s also limited support for ObjC/ObjC++. It allows you to find symbols by name (including nested class and namespace scope). Most importantly we give you proper follow-symbol and find-references support. We also have neat little things like rename-symbol, integration with clang’s “fixits” (http://clang.llvm.org/diagnostics.html). We also integrate with flymake using clang’s vastly superior errors and warnings. Since RTags constantly will reindex “dirty” files you get live updates of compiler errors and warnings. Since we already know how to compile your sources we have a way to quickly bring up the preprocessed output of the current source file in a buffer.

While existing taggers like gnu global, cscope, etags, ctags etc do a decent job for C they often fall a little bit short for C++. With its incredible lexical complexity, parsing C++ is an incredibly hard task and we make no bones about the fact that the only reason we are able to improve on the current tools is because of clang (http://clang.llvm.org/). RTags is named RTags in recognition of Roberto Raggi on whose C++ parser we intended to base this project but he assured us clang was the way to go. The name stuck though.

Blog article about using the simulated keys of the Emacs X Window Manager (EXWM) to change keymaps of programs such as Mozilla Firefox.

The second edition of the book Structure and Interpretation of
Computer Programs (SICP) in info format. The HTML version can be found on https://mitpress.mit.edu/sites/default/files/sicp/index.html

Simple example of adding a dynamically loaded function written in C to Emacs.

Example of an Org-mode document.

Specification document skeleton for a web application, incl. usage examples of various org-mode features:
       Inline, text-based diagramming via Ditaa, Graphviz & PlantUML
       Hyperlink abbreviations (incl. presets for GitHub, RFC, W3C, Wikipedia)
       Section status flags, tags & custom properties
       Tables
       Named section IDs for internal x-refs
       Footnotes
       Automatically updating fields (e.g. publication date)
       Automatic updating of document changelog (using git commits)
   Beautiful, minimal, responsive CSS theme with print support (also for PDF generation)
   Basic syntax highlighting of code blocks

Example for a dynamic module in Emacs 25.

This is an Emacs configuration file written in Org mode. It is an attempt to keep ~/.emacs.d tidy, but still be able to keep it all in one file. Contains brief explanations of the configurations.

A literate programming tool for Emacs.