Set up and configure Common Lisp tooling. Choose your implementation of choice via LISP. EXTRA-SOURCE-REGISTRY-FILES is a list of file-likes that will be added under .config/common-lisp/source-registry.conf.d to allow the ASDF source-registry mechanism to discover new Lisp systems in custom file-system locations. Customize the sly prompt with SLY-CUSTOM-PROMPT, a procedure that takes the current RDE configuration and should return an Emacs Lisp function that represents the custom prompt. If you'd rather use the default sly prompt, simply pass #f to it. See sly-mrepl-default-prompt for its arguments and return value.

Configure Gptel, a simple and unintrusive LLM client for Emacs. EMACS-GPTEL-API-KEY is a list of program and arguments that are called by Emacs and that returns a string API key (safer defaults than having it as a string on-disk). By default, it tries to load the `emacs-gptel-api-key' from the password-store.

Maps keys randomly

Add default values to mail-providers-settings.

TLDR: Use 465 SMTP port, where possible.

Usually, the default SMTP port is 587, it supports both unencrypted and encrypted with starttls mode of operation. It potentially can be spuffed to established unencrypted connection, thus 465 is preffered by default as it always encrypted. If port 587 is needed it must be specified explicitly via port option or just by setting starttls option to #t.

Default IMAP port is 993 and it's encrypted by default.

If folder-mapping is not specified the generic-folder-mapping one is used.

The tool for working with public-inbox archives and for applying patches (not only from public inbox). It has integration with notmuch and possibly a few other tools (get more info in the documentation of the project: https://docs.kyleam.com/piem/).

Configure msmtp MTA.

TLS enabled by default, SMTPS 465 port is used by default.

It is possible to use SMTP+STARTTLS by setting starttls? to #t, but not recommended. For SMTP port 587 will used by default. https://serverfault.com/questions/523804/is-starttls-less-safe-than-tls-ssl

Also, port can be explicitly specified with port option (it's very unlikely you ever need this).

Setup and configure isync. If MAIL-ACCOUNT-IDS not provided use all mail accounts. ISYNC-VERBOSE controls output verboseness of mbsync.

Configure org-mime for wysiwyg html mime mail composition via Org Mode. You can change the exported HTML-ELEMENT-STYLES by providing an association list of ELEMENT . STYLE such as:

'(("pre" . "color: #E6E1Dc; background-color: #232323; padding: 0.5em;")
  ("blockquote" . "border-left: 2px solid gray; padding-left: 4px;"))

The above darkens exported code-blocks and adds a border and some padding to offset block quotes.

Configure l2md MDA.

Provide mail-accounts and mail-directory-fn for other mail-related features.

Configure the Debbugs user interface for Emacs. Set the default packages to retrieve bugs for with DEFAULT-PACKAGES and the default severities with which bugs should be filered with DEFAULT-SEVERITIES.

Configure smtpmail, a simple mail protocol for sending mail from Emacs. If no MAIL-ACC-ID is provided, no account-specific settings will be configured.