How I use emacs

Launch the emacs server.
```
PATH=~/.ghcup/bin:$PATH emacs --fg-daemon
```
I think this may require version at least 26. If there are things that ought to be in your PATH (for me cabal installed by ghcup) this is a convenient way to ensure that they are there.
Launch the emacs client as a long-running editor
```
emacsclient --create-frame
```
To close this frame you will have to do C-x 5 0 (save-buffers-kill-terminal will also work).
Launch the emacs client here in this terminal (for use as a Git commit message editor, etc.)
```
emacsclient --create-frame --alternate-editor=jmacs [filenames]
```
You can put this in the EDITOR environment variable. It will fall back to jmacs as an alternative editor if the emacs server is not running.

If no filenames were provided then you can use C-x 5 0 to close the frame. If filenames were provided then you also have the option to close the frame by killing all their buffers.
Git blame

https://stackoverflow.com/questions/15460550/git-blame-with-commit-details-in-emacs
TAB means TAB
```
M-x local-set-key<RET> <TAB> self-insert-command
```
See Understanding GNU Emacs and Tabs. I really want to apply this to particular files only, but I’m not sure how.
Turn of LSP “signature” popups
```
(setq lsp-signature-auto-activate nil)
(setq lsp-signature-render-documentation nil)
```
https://emacs-lsp.github.io/lsp-mode/tutorials/how-to-turn-off/

Things I want to know

How to do the equivalent of mouse middle button paste from the keyboard. See https://www.emacswiki.org/emacs/CopyAndPaste. (Seems to be mouse-yank-primary)

I want C-x b to always go back to the last buffer I was in. By default it does not if another window is already visiting that buffer.
Helm
- Tab completion: it should complete up to the longest common prefix, not choose the currently selected
- Helm: tying filename matches FileName. Typing dir/filename should match Dir/filename.
When I’m visiting a buffer whose file has been git mv’d, offer to move the buffer to it.
Select containing expression