This is Buffer Layers, a simple, layer-based buffer management system. It works by defining buffer layers using a fairly simple macro. The following would be put in a file called `org.layer` ```elisp ;; -*- emacs-lisp -*- (define-buffer-layer org :files ("~/org/" "~/org/main.org") :buffer-to-select "main.org" :run-on-apply ((my/find-current-notes-file))) ``` It can be loaded with `(load-buffer-layer "/path/to/org.layer" nil)`. If the final `nil` is changed to `t`, it will load and apply the layer. Buffer Layer Definitions take the following arguments: - `:files`: A list. This is the list of files that are loaded when the buffer layer is applied. - `:buffer-to-select`: The buffer to select after files are loaded, and the given forms to run on application are executed. - `:run-on-apply`: This is a list of forms to be executed in between finding files and selecting the given buffer. - `:run-on-remove`: This is a list of forms to be executed after killing the buffers that have been loaded. To manipulate buffer layers, execute `buffer-layer-mode`, and then you can use the following keybindings: - `C-x L l`: Load a buffer layer, if defined, otherwise, load from the given file. - `C-x L u`: Unload a loaded buffer layer. - `C-x L U`: Unload all loaded buffer layers. - `C-x L L`: List defined buffer layers, noting if they've been applied. The following are the user-facing functions: - `define-buffer-layer` - `buffer-layer-load-buffer-layer`, also known as `load-buffer-layer` - `buffer-layers-unload-buffer-layer` - `buffer-layers-list` - `buffer-layers-unload-all-buffer-layers` - `buffer-layers-mode` On enabling `buffer-layer-mode`, the map is placed onto `C-x L`, and `buffer-layers-unload-all-buffer-layers` is added to the `kill-emacs-hook`, and on disabling the mode, they are removed. [![MELPA](https://melpa.org/packages/buffer-layers-badge.svg)](https://melpa.org/#/buffer-layers)