This is my very own Emacs configuration. There are many like it, but this one's mine.
This configuration is meant and has only been tested with Emacs 30.2.
I try to be explicit about what I use. Magic is limited to using external packages. I know every line of the configuration and why are they there.
I use use-package extensively.
I used to have an Emacs configuration based on Prelude which is now discontinued.
This list might be outdated, you would do better by grepping init.el for use-package uses.
ace-window: quickly move/split/swap/copy windows.all-the-icons: pretty icons.all-the-icons-ibuffer: pretty icons in ibuffer.all-the-icons-completion: pretty icons in completion minibuffer.anzu: highlight search and replace.auto-compile: compile Elisp files on load and/or save.avy: quick jumps.browse-kill-ring: Browse. The. Kill. Ring.calibredb: an Emacs interface to the Calibre DB.corfu: completion-at-point popup. Like company but lighter.compile: built-in command to compile stuff.consult: practical commands based on the Emacs completion functioncompleting-read.consult-dir: insert directory paths into the minibuffer prompt.crux: collection of random utilities, originally bundled with Prelude.csv-mode: major mode to edit CSV (Comma-Separated Values) files.diff-hl: show uncommitted changes.diminish: hide minor-modes from modeline.dockerfile-mode: major mode to edit Dockerfiles.doom-modeline: a very nice modeline.doom-themes: collection of themes for Doom Emacs, they place nicely withdoom-modeline.easy-kill: mark/kill words, sexps, lines and more.editorconfig: support for .editorconfig files.eglot: LSP client built-in since Emacs 29.eldoc: display documentation about current function in echo area.ellama: interact with large language models from Emacs.embark: choose a command to run based on what is near point, both during a minibuffer completion session and in normal buffers.emojify: display emojis.envrc: use direnv to update Emacs environment when visiting files.exec-path-from-shell: have Emacs inherit environment variables.expand-region: increase selected region by semantic units.flymake: Emacs built-in error checker. It integrates natively with Eglot.flyspell: spell checking.forge: Magit extension to work with code hosting sites (e.g. GitHub).geiser: Scheme hacking.git-timemachine: browse previous revisions of any git-controlled file.go-mode: major mode for Go files.helpful: better help buffers.ibuffer: better buffer view. Like dired for buffers.ibuffer-projectile: group buffers by project in ibuffer view.js2-mode: major mode for Javascript files.js2-refactor: refactor operations for Javascript code.json-mode: major mode for JSON files.key-chord: execute commands by pressing keys quickly.keycast: show current command and its binding.kind-icon: icons for completion-at-point candidates.magit: the best Git interface there is.magit-delta: integrate delta diff with Magit.marginalia: adds marginalia to the minibuffer completions.markdown-mode: major mode to edit Markdown files.move-text: move lines or regions up and down.no-littering: keep Emacs config directory clean.nov-el: major mode for reading EPUB files in Emacs.olivetti: center text for better writing.orderless: completion style that divides the pattern into space-separated components, and matches candidates that match all of the components in any order.org: the most powerful note taking and planning software ever created.org-superstar: prettier headings in org-mode.orgit: link to Magit buffers from Org-mode.orgit-forge: link to Forge buffers from Org-mode.perspective: per-project named workspaces with window layouts and buffer lists.popper: tame the flood of ephemeral windows Emacs produces.projectile: project management.puni: minor mode to work with delimiters that come in pairs, e.g. parentheses, braces, tags, etc.rainbow-delimiters: color delimiters such as parentheses or braces as they nest.rainbow-mode: color strings that describe colors.rjsx-mode: minor mode for React JSX files.rustic: major mode for Rust coding.saveplace: built-in to remember last position on each open file.super-save: automatically save buffers on certain events.systemd: major mode for editing systemd files.tramp: remote file editing, beyond cool.treesit-auto: automatically install and use tree-sitter grammars.unfill: the inverse of Emacs'fill-paragraphandfill-region.vundo: visualize and navigate the undo history as a tree, never lose an edit.vertico: performant and minimalistic vertical completion UI based on the default completion system.volatile-highlights: visual feedback for some operations.web-mode: major mode for web templates (HTML and much more).wgrep: edit a grep buffer and apply those changes to the file buffer.which-key: show all possible key combinations.whitespace-cleanup-mode: minor mode to clean up a buffer's whitespace on save.writegood-mode: minor mode to aid in finding common writing problems in English.yaml-mode: major mode for YAML files.yasnippet: snippet extension.yasnippet-snippets: snippet collection for yasnippet.
I have drawn inspiration from many other people's configurations of Emacs. I thank them all for sharing, usually with much better comments than mine. Here are the ones I have studied more in depth: