diff --git a/Readme.org b/Readme.org
index 2751440..a4a1e09 100644
--- a/Readme.org
+++ b/Readme.org
@@ -12,6 +12,11 @@ If something reaches a stable state I may publish it if there's interest.
 This repository contains a mix of supporting libraries and things that are
 actually useful.
 
+** INCUBATING [[file:lisp/org-roam-review.el][org-roam-review]]
+Implements a system for managing [[https://maggieappleton.com/evergreens][Evergreen Notes]] on top of org-roam. Provides a
+spaced-repetition system that prompts you to review notes or revisit stubs and
+help them grow to maturity.
+
 ** SPIKE [[file:lisp/org-roam-gc.el][org-roam-gc]]
 Automatically delete empty dailies files so they don't build up forever.
 
@@ -28,3 +33,4 @@ or tags.
 Most packages should be manually installable via =package.el=, assuming you have
 [[https://melpa.org/#/getting-started][MELPA]] set up. But honestly, you're better off just cloning and putting this
 repo's lisp directory in your load path, and manually installing anything that's
+missing off MELPA.
diff --git a/lisp/org-roam-review.el b/lisp/org-roam-review.el
new file mode 100644
index 0000000..28bcf2f
--- /dev/null
+++ b/lisp/org-roam-review.el
@@ -0,0 +1,799 @@
+;;; org-roam-review.el --- Extends org-roam with spaced-repetition review of nodes  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022  Chris Barrett
+
+;; Author: Chris Barrett <chris+emacs@walrus.cool>
+
+;; Package-Requires: ((emacs "27.1") (dash "2.19.1") (ts "0.3-pre") (org-roam "2.2.2") (org-drill "2.7.0"))
+
+;; Homepage: https://github.com/chrisbarrett/nursery
+
+;; Version: 0.0.1-pre
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License along with
+;; this program. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Provides commands to categorise and review org-roam nodes for Evergreen
+;; note-taking. Notes are surfaced using the spaced-repetition algorithm from
+;; org-drill.
+
+;; The main entrypoint is `M-x org-roam-review', which shows your nodes due for
+;; review and refinement. With a prefix argument, that command will list all
+;; your nodes by category, which is useful for getting a quick overview of your
+;; Evergreens.
+
+;; Example configuration:
+;;
+;;     (use-package org-roam-review
+;;       :hook
+;;       (org-mode . org-roam-note-cache-mode)
+;;       ;; Optional - tag all newly-created notes as seedlings
+;;       (org-roam-capture-new-node . org-roam-review-set-seedling)
+;;       :general
+;;       ;; optional bindings for evil-mode compatability.
+;;       (:states '(normal) :keymaps 'org-roam-review-mode-map
+;;        "TAB" 'magit-section-cycle
+;;        "g r" 'org-roam-review-refresh)
+;;       (:keymaps 'org-mode-map
+;;        "C-c r r" '(org-roam-review-accept :wk "accept")
+;;        "C-c r u" '(org-roam-review-bury :wk "bury")
+;;        "C-c r x" '(org-roam-review-set-excluded :wk "set excluded")
+;;        "C-c r b" '(org-roam-review-set-budding :wk "set budding")
+;;        "C-c r s" '(org-roam-review-set-seedling :wk "set seedling")
+;;        "C-c r e" '(org-roam-review-set-evergreen :wk "set evergreen")))
+
+;;; Code:
+
+(require 'dash)
+(require 'org-tags-filter)
+(require 'org-drill)
+(require 'org-roam-node)
+(require 'org-roam-dailies)
+(require 'ts)
+
+(defgroup org-roam-review nil
+  "Extends org-roam with spaced-repetition review of nodes."
+  :group 'productivity
+  :prefix "org-roam-review-")
+
+(defcustom org-roam-review-tags-ignored-for-review-buffer '("dailies")
+  "A list of tags that disqualify a node from review."
+  :group 'org-roam-review
+  :type '(list string))
+
+(defcustom org-roam-review-show-instructions-p t
+  "Whether to show instructions in review buffers."
+  :group 'org-roam-review
+  :type 'boolean)
+
+(defcustom org-roam-review-ignored-tags '("dailies")
+  "A list of tags for nodes that should never be reviewable."
+  :group 'org-roam-review
+  :type '(list string))
+
+(defface org-roam-review-instructions
+  '((t
+     (:inherit font-lock-comment-face)))
+  "Face for instructional information in a review buffer."
+  :group 'org-roam-review)
+
+(defface org-roam-review-heading
+  '((t (:inherit org-level-2 :bold t)))
+  "Face for headings in review buffers."
+  :group 'org-roam-review)
+
+(defface org-roam-review-tags-filter-keyword
+  '((t (:bold t)))
+  "Face for the tags heading in review buffers."
+  :group 'org-roam-review)
+
+(defface org-roam-review-tags-filter
+  '((t (:italic t)))
+  "Face for tag filter text in review buffers."
+  :group 'org-roam-review)
+
+(defconst org-roam-review-maturity-values '("seedling" "evergreen" "budding"))
+
+(defconst org-roam-review-maturity-emoji-alist
+  '(("seedling" . "🌱")
+    ("budding" . "🪴")
+    ("evergreen" . "🌲")))
+
+(defconst org-roam-review-properties
+  '("LAST_REVIEW"
+    "NEXT_REVIEW"
+    "MATURITY"
+    "DRILL_LAST_INTERVAL"
+    "DRILL_REPEATS_SINCE_FAIL"
+    "DRILL_TOTAL_REPEATS"
+    "DRILL_FAILURE_COUNT"
+    "DRILL_AVERAGE_QUALITY"
+    "DRILL_EASE")
+  "List of properties managed by `org-roam-review'.")
+
+(defvar org-roam-review-node-accepted-hook nil
+  "Hook run after marking a node as successfully reviewed.
+
+The hook is run within `org-roam-review-accept', with that node
+as the current buffer.")
+
+(defvar org-roam-review-node-buried-hook nil
+  "Hook run after marking a node as successfully reviewed.
+
+The hook is run within `org-roam-review-bury', with that node as
+the current buffer.")
+
+(defvar org-roam-review-node-processed-hook nil
+  "Hook run whenever a node is buried or accepted in a review.
+
+The hook is run with the node as the current buffer.")
+
+(defvar org-roam-review-next-node-selected-hook '(org-roam-review-open-node-if-in-review-session)
+  "A hook executed when point advances to the next node for review.
+
+Running `org-roam-review-accept' or `org-roam-review-bury' causes
+point to advance to the next section in the review buffer, when
+open. The hook is runs with the review buffer as the current
+buffer, and with point at the section corresponding to the next
+node for review.
+
+The default value for this hook means the next node for
+review is automatically opened, where available.")
+
+
+;;; SRS property management & parsing
+
+;; We parse & store a number of properties on nodes to track review state.
+
+(defvar org-roam-review--maturity-score-revisit 1)
+(defvar org-roam-review--maturity-score-ok 3)
+(defvar org-roam-review--maturity-score-bury 5)
+
+(defun org-roam-review--update-next-review (quality)
+  "Adapted from org-drill.
+
+QUALITY is a number 0-5 inclusive.
+
+- only use sm5 algorithm for simplicity
+- use properties instead of SCHEDULED.
+- remove support for 'weighting' a node."
+  (-let* ((ofmatrix org-drill-sm5-optimal-factor-matrix)
+          ((last-interval repetitions failures total-repeats meanq ease) (org-drill-get-item-data))
+          ((next-interval repetitions ease failures meanq total-repeats new-ofmatrix)
+           (org-drill-determine-next-interval-sm5 last-interval repetitions
+                                                  ease quality failures
+                                                  meanq total-repeats ofmatrix))
+          (next-interval (round (if (cl-minusp next-interval)
+                                    next-interval
+                                  (max 1.0 (+ last-interval (- next-interval last-interval))))))
+          (new-time (ts-adjust 'day next-interval (ts-now))))
+    (setq org-drill-sm5-optimal-factor-matrix new-ofmatrix)
+    (org-drill-store-item-data next-interval repetitions failures total-repeats meanq ease)
+
+    (let ((next-review (ts-format "[%Y-%m-%d %a]" new-time)))
+      (org-set-property "NEXT_REVIEW" next-review)
+      next-review)))
+
+(defun org-roam-review--update-node-srs-properties (maturity score)
+  "Set the MATURITY and updated SCORE for a node.
+
+A higher score means that the node will appear less frequently."
+  (cl-assert (member maturity org-roam-review-maturity-values))
+  (cl-assert (derived-mode-p 'org-mode))
+  (when (org-roam-review--daily-file-p (buffer-file-name))
+    (user-error "Cannot set maturity on daily file"))
+  (let ((id (org-entry-get (point-min) "ID")))
+    (unless id
+      (error "Not visiting an Evergreen Note--no ID property found"))
+    (org-with-point-at (org-find-property "ID" id)
+      (atomic-change-group
+        (let ((next-review (org-roam-review--update-next-review score)))
+          (ignore-errors
+            (org-roam-tag-remove org-roam-review-maturity-values))
+          (org-roam-tag-add (list maturity))
+
+          (org-set-property "MATURITY" maturity)
+          (org-set-property "LAST_REVIEW" (org-format-time-string "[%Y-%m-%d %a]"))
+
+          (save-buffer)
+          (message "Maturity set to '%s'. Review scheduled for %s" maturity next-review))))))
+
+(defun org-roam-review-node-ignored-p (node &optional filter-plist)
+  (let* ((filter-plist (or filter-plist org-tags-filter-last-value))
+         (tags (org-roam-node-tags node))
+         (forbidden-tags (org-tags-filter-forbidden filter-plist))
+         (required-tags (org-tags-filter-required filter-plist)))
+    (or (seq-intersection tags forbidden-tags)
+        (seq-difference required-tags tags))))
+
+(defun org-roam-review-node-created-at (node)
+  (-when-let* (((&alist "CREATED" created) (org-roam-node-properties node)))
+    (ts-parse-org created)))
+
+(defun org-roam-review-node-next-review (node)
+  (-when-let* (((&alist "NEXT_REVIEW" next-review) (org-roam-node-properties node)))
+    (ts-parse-org next-review)))
+
+(defun org-roam-review-node-maturity (node)
+  (-when-let* (((&alist "MATURITY" maturity) (org-roam-node-properties node)))
+    (intern maturity)))
+
+(defun org-roam-review-node-list ()
+  "Return all org-roam-nodes that are not explicitly ignored from reviews."
+  (let ((table (ht-create)))
+    (dolist (node (org-roam-node-list))
+      (unless (org-roam-review-node-ignored-p node)
+        (ht-set table (org-roam-node-id node) node)))
+    (ht-values table)))
+
+
+;;; Review buffers
+
+(defun org-roam-review--daily-file-p (&optional file)
+  "Test whether FILE is a daily node.
+
+If FILE is not given, checks the current buffer.
+
+This is a wrapper that makes sure org-roam-directory is well-formed.
+
+See:
+https://github.com/org-roam/org-roam/issues/2032"
+  (cl-assert (or file (buffer-file-name)))
+  (let ((org-roam-directory (string-remove-suffix org-roam-dailies-directory org-roam-directory)))
+    (org-roam-dailies--daily-note-p file)))
+
+(defun org-roam-review--tags-at-pt (&optional local)
+  (seq-map #'substring-no-properties
+           (if (org-before-first-heading-p)
+               org-file-tags
+             (org-get-tags nil local))))
+
+(defvar-local org-roam-review-buffer-refresh-command nil)
+
+(defun org-roam-review-buffers ()
+  (seq-filter (lambda (buf)
+                (and (buffer-live-p buf)
+                     (with-current-buffer buf
+                       (derived-mode-p 'org-roam-review-mode))))
+              (buffer-list)))
+
+(defun org-roam-review-refresh (&optional interactive-p)
+  "Rebuild the review buffer.
+
+INTERACTIVE-P indicates that the function was called
+interactively. Extra messages will be logged."
+  (interactive "P")
+  (dolist (buf (org-roam-review-buffers))
+    (with-current-buffer buf
+      (unless org-roam-review-buffer-refresh-command
+        (error "Refresh command not defined"))
+      (funcall org-roam-review-buffer-refresh-command)))
+  (when interactive-p
+    (message "Buffer refreshed")))
+
+(defun org-roam-review-modify-tags (tags-filter &optional no-refresh)
+  "Read tags filter interactively.
+
+TAGS-FILTER is plist of type `org-tags-filter'.
+
+NO-REFRESH means don't update open org-roam-review buffers.
+
+When called with a `C-u' prefix arg, clear the current filter."
+  (interactive (list
+                (unless current-prefix-arg
+                  (org-tags-filter-read))))
+  (setq org-tags-filter-last-value tags-filter)
+  (unless no-refresh
+    (org-roam-review-refresh t)))
+
+(defvar org-roam-review-mode-map
+  (let ((keymap (make-sparse-keymap)))
+    (define-key keymap (kbd "/") #'org-roam-review-modify-tags)
+    (define-key keymap (kbd "TAB") #'magit-section-cycle)
+    (define-key keymap (kbd "g") #'org-roam-review-refresh)
+    (define-key keymap (kbd "a") #'org-roam-review-accept)
+    (define-key keymap (kbd "u") #'org-roam-review-bury)
+    (define-key keymap (kbd "x") #'org-roam-review-set-excluded)
+    (define-key keymap [remap org-roam-buffer-refresh] #'org-roam-review-refresh)
+    keymap))
+
+(defun org-roam-review--refresh-buffer-override (fn &rest args)
+  (if (equal (buffer-name) org-roam-buffer)
+      (apply fn args)
+    (call-interactively 'org-roam-review-refresh)))
+
+(define-derived-mode org-roam-review-mode org-roam-mode "Org-roam-review"
+  "Major mode for displaying relevant information about Org-roam nodes for review."
+  :group 'org-roam-review
+  ;; HACK: avoid all calls to org-roam-buffer-review if we're in a review
+  ;; buffer, since it will error.
+  (advice-add 'org-roam-buffer-refresh :around #'org-roam-review--refresh-buffer-override))
+
+(defvar org-roam-review-indent-width 2)
+
+(defun org-roam-review-indent-string (str depth)
+  (replace-regexp-in-string (rx bol) (make-string (* depth org-roam-review-indent-width) 32)
+                            str))
+
+(cl-defun org-roam-review-insert-preview (node &optional (depth 0))
+  (magit-insert-section preview (org-roam-preview-section)
+    (let* ((start (org-roam-node-point node))
+           (file (org-roam-node-file node))
+           (content (org-roam-fontify-like-in-org-mode (org-roam-preview-get-contents file start))))
+      (oset preview file file)
+      (oset preview point start)
+      (insert (org-roam-review-indent-string (if (string-blank-p (string-trim-left content))
+                                                 (propertize "(Empty)" 'font-lock-face 'font-lock-comment-face)
+                                               content)
+                                             depth))
+      (insert "\n\n"))))
+
+(defun org-roam-review--insert-node (node)
+  (atomic-change-group
+    (magit-insert-section section (org-roam-node-section (org-roam-node-id node) t)
+      (magit-insert-heading (propertize (org-roam-node-title node)
+                                        'font-lock-face 'magit-section-secondary-heading))
+      (oset section node node)
+      ;; KLUDGE: Mofified macro-expansion of `magit-insert-section-body' that
+      ;; avoids unsetting the parent section's keymap.
+      (oset section washer
+            (lambda ()
+              (org-roam-review-insert-preview node)
+              (magit-section-maybe-remove-visibility-indicator section))))))
+
+(defvar org-roam-review-default-placeholder
+  (propertize "(None)" 'face 'font-lock-comment-face))
+
+(defun org-roam-review--insert-nodes (nodes placeholder)
+  (if nodes
+      (--each (nreverse nodes)
+        (org-roam-review--insert-node it))
+    (insert (or placeholder org-roam-review-default-placeholder))
+    (newline)))
+
+(plist-define org-roam-review-render-args
+  :optional (:group-on :nodes :placeholder :sort)
+  :required (:root-section))
+
+(defclass org-roam-review-grouping-section (magit-section) ())
+
+(defalias 'org-roam-review--render
+  (-lambda ((&plist :group-on :nodes :placeholder :sort :root-section))
+    (let ((sort (or sort (-const t))))
+      (cond
+       ((null nodes)
+        (insert (or placeholder org-roam-review-default-placeholder))
+        (newline))
+       (group-on
+        (let ((grouped (->> (seq-group-by group-on nodes)
+                            (-sort (-on #'<= (-lambda ((key . _))
+                                               (if (stringp key) key (or (cdr key) 0))))))))
+          (pcase-dolist (`(,key . ,group) grouped)
+            (when (and key group)
+              (let ((header (format "%s (%s)"
+                                    (if (stringp key) key (car key))
+                                    (length group))))
+                (magit-insert-section section (org-roam-review-grouping-section header)
+                  (oset section parent root-section)
+                  (magit-insert-heading (propertize header 'font-lock-face 'magit-section-heading))
+                  (org-roam-review--insert-nodes (-sort sort group) placeholder)
+                  (insert "\n")))))))
+       (t
+        (org-roam-review--insert-nodes (-sort sort nodes) placeholder))))))
+
+(cl-defun org-roam-review--re-render (&key render title instructions group-on placeholder sort nodes)
+  (let ((inhibit-read-only t))
+    (erase-buffer)
+    (org-roam-review-mode)
+    (org-roam-buffer-set-header-line-format title)
+    (magit-insert-section root-section (root)
+      (when (and org-roam-review-show-instructions-p instructions nodes)
+        (let ((start (point)))
+          (insert (propertize instructions 'font-lock-face 'org-roam-review-instructions))
+          (fill-region start (point)))
+        (newline 2))
+
+      (let ((forbidden-tags (seq-map (lambda (it) (format "-%s" it)) (org-tags-filter-forbidden org-tags-filter-last-value)))
+            (required-tags (seq-map (lambda (it) (format "+%s" it)) (org-tags-filter-required org-tags-filter-last-value))))
+        (when (or forbidden-tags required-tags)
+          (insert (concat (propertize "Filters:" 'face 'org-roam-review-tags-filter-keyword)
+                          " "
+                          (propertize (string-join (append forbidden-tags required-tags) " ") 'face 'org-roam-review-tags-filter)))
+          (newline 2)))
+
+      (let ((start-of-content (point)))
+        (funcall render
+                 (org-roam-review-render-args-create :nodes nodes
+                                                     :group-on group-on
+                                                     :sort sort
+                                                     :root-section root-section
+                                                     :placeholder placeholder))
+        (goto-char start-of-content)))))
+
+(cl-defun org-roam-review-create-buffer
+    (&key title instructions group-on placeholder sort
+          (nodes #'org-roam-review-node-list)
+          (buffer-name "*org-roam-review*")
+          (render 'org-roam-review--render))
+  "Create a node review buffer for nodesusing Evergreen SRS.
+
+The following keyword arguments are required:
+
+- TITLE is the header line for the buffer.
+
+- INSTRUCTIONS is a paragraph inserted below the title. It is
+  automatically paragraph-filled.
+
+The following keyword arguments are optional:
+
+- NODES is a function returning a list of nodes to display (which
+  is possibly empty). It defaults to all non-ignored nodes.
+
+- PLACEHOLDER is a string to be shown if there are no nodes to
+  display.
+
+- BUFFER-NAME is the name to use for the created buffer.
+
+- RENDER is a function taking a single argument, a plist of type
+  `org-roam-review-render-args', that populates the buffer using
+  the magit-section API. It can be used to override the default
+  rendering behaviour.
+
+- GROUP-ON is a projection function that is passed a node and
+  should return one of:
+
+    - nil, meaning the node should be omitted
+
+    - a string to use for grouping the node
+
+    - a cons of `(GROUP-NAME . GROUP-PRIORITY)', where:
+
+        - GROUP-NAME is the string for grouping the node
+
+        - GROUP-PRIORITY is a number used to order group in the
+          buffer.
+
+- SORT is a projection function that is passed two nodes within a
+  group and returns non-nil if the first element should sort
+  before the second."
+  (cl-assert title)
+  (cl-assert (functionp nodes))
+  (let (re-render)
+    (setq re-render
+          (lambda (updated-nodes)
+            (with-current-buffer (get-buffer-create buffer-name)
+              (org-roam-review--re-render :title title
+                                          :instructions instructions
+                                          :nodes updated-nodes
+                                          :group-on group-on
+                                          :placeholder placeholder
+                                          :sort sort
+                                          :render render)
+              (setq-local org-roam-review-buffer-refresh-command (lambda () (funcall re-render (funcall nodes))))
+              (current-buffer))))
+    (funcall re-render (funcall nodes))))
+
+;;;###autoload
+(defun org-roam-review (&optional all)
+  "List nodes that are due for review.
+
+With optional prefix arg ALL, list all evergreen nodes
+categorised by their maturity."
+  (interactive "P")
+  (if all
+      (org-roam-review-list-by-maturity)
+    (org-roam-review-list-due)))
+
+(defun org-roam-review--maturity-header (node)
+  (pcase (org-roam-review-node-maturity node)
+    ('seedling (cons "Seedling 🌱" 3))
+    ('budding (cons "Budding 🪴" 2))
+    ('evergreen (cons "Evergreen 🌲" 1))
+    (value value)))
+
+(defun org-roam-review-display-buffer-and-select (buf)
+  (display-buffer buf)
+  (when-let* ((win (seq-find (lambda (it) (equal buf (window-buffer it)))
+                             (window-list))))
+    (select-window win)))
+
+(defun org-roam-review-node-due-p (node)
+  (when-let* ((next-review (org-roam-review-node-next-review node)))
+    (ts<= next-review (ts-now))))
+
+;;;###autoload
+(defun org-roam-review-list-due ()
+  "List nodes that are due for review."
+  (interactive)
+  (org-roam-review-display-buffer-and-select
+   (org-roam-review-create-buffer
+    :title "Due Notes"
+    :instructions "The nodes below are due for review.
+Read each node and add new thoughts and connections, then mark
+them as reviewed with `org-roam-review-accept',
+`org-roam-review-bury' or by updating their maturity."
+    :placeholder (concat (propertize "You're up-to-date!" 'face 'font-lock-comment-face) " 😸")
+    :group-on #'org-roam-review--maturity-header
+    :sort (-on #'ts< #'org-roam-review-node-next-review)
+    :nodes
+    (lambda ()
+      (seq-filter (lambda (node)
+                    (and (zerop (org-roam-node-level node))
+                         (null (seq-intersection (org-roam-node-tags node)
+                                                 org-roam-review-tags-ignored-for-review-buffer))
+                         (org-roam-review-node-due-p node)))
+                  (org-roam-review-node-list))))))
+
+(defalias 'org-roam-review-sort-by-title-case-insensitive
+  (-on #'string-lessp (-compose  #'downcase #'org-roam-node-title)))
+
+;;;###autoload
+(defun org-roam-review-list-by-maturity ()
+  "List all evergreen nodes categorised by maturity."
+  (interactive)
+  (org-roam-review-display-buffer-and-select
+   (org-roam-review-create-buffer
+    :title "Evergreen Notes"
+    :instructions "The nodes below are categorised by maturity."
+    :group-on #'org-roam-review--maturity-header
+    :sort #'org-roam-review-sort-by-title-case-insensitive
+    :nodes
+    (lambda ()
+      (seq-filter #'org-roam-review-node-maturity (org-roam-review-node-list))))))
+
+
+;; Outline management stuff.
+
+;; TODO: Remove this once reference management is migrated to Zotero+citar.
+
+;;;###autoload
+(defun org-roam-review-list-outlines ()
+  "List all outline nodes."
+  (interactive)
+  (org-roam-review-display-buffer-and-select
+   (org-roam-review-create-buffer
+    :title "Outline Notes"
+    :instructions "The nodes below are outlines of sources,
+grouped by whether they require further processing."
+    :sort #'org-roam-review-sort-by-title-case-insensitive
+    :nodes
+    (lambda ()
+      (seq-filter (lambda (node)
+                    (seq-contains-p (org-roam-node-tags node)
+                                    "outline"))
+                  (org-roam-review-node-list))))))
+
+;;;###autoload
+(defun org-roam-review-visit-outline (&optional arg)
+  "Choose an ouline node to open.
+
+With a single prefix ARG, show in other another window.
+
+With two prefix args, show the list of outlines instead."
+  (interactive "p")
+  (if (equal 16 arg)
+      (org-roam-review-list-outlines)
+    (org-roam-node-visit
+     (org-roam-node-read nil
+                         (lambda (it)
+                           (and (equal (org-roam-node-level it) 0)
+                                (seq-contains-p (org-roam-node-tags it) "outline")))
+                         nil
+                         t
+                         "Outline: "))))
+
+(defun org-roam-review--node-added-group (node)
+  (when-let* ((created (org-roam-review-node-created-at node))
+              (recently (ts-adjust 'hour -24 (ts-now))))
+    (cond
+     ((ts<= recently created)
+      (cons "Recent" 1))
+     ((ts<= (ts-adjust 'day -3 recently) created)
+      (cons "Last 3 days" 2))
+     ((ts<= (ts-adjust 'day -7 recently) created)
+      (cons "Last week" 3)))))
+
+;;;###autoload
+(defun org-roam-review-list-recently-added ()
+  "List nodes that were created recently, grouped by time."
+  (interactive)
+  (org-roam-review-display-buffer-and-select
+   (org-roam-review-create-buffer
+    :title "Recently Created Notes"
+    :instructions "The nodes below are sorted by when they were created."
+    :group-on #'org-roam-review--node-added-group
+    :sort #'org-roam-review-sort-by-title-case-insensitive)))
+
+
+;;; Commands for manipulating node review state.
+
+(defun org-roam-review--update-workspace-for-completed-review ()
+  (save-buffer)
+  (kill-buffer)
+  (when-let* ((buf (get-buffer "*org-roam-review*")))
+    (org-roam-review-display-buffer-and-select buf)))
+
+(defmacro org-roam-review--visiting-node-at-point (&rest body)
+  (declare (indent 0))
+  `(let* ((node (org-roam-node-at-point t))
+          (file (org-roam-node-file node)))
+     (cond
+      (file
+       (with-current-buffer (find-file-noselect file)
+         (save-excursion
+           (goto-char (org-roam-node-point node))
+           ,@body)))
+      ((derived-mode-p 'org-mode)
+       (org-with-wide-buffer
+        (point-min)
+        ,@body))
+      (t
+       (error "Invalid context for visiting node")))
+     node))
+
+(defun org-roam-review--in-review-session-p ()
+  (and (< 1 (length (window-list)))
+       (seq-find (lambda (it) (equal (get-buffer "*org-roam-review*") (window-buffer it)))
+                 (window-list))))
+
+(defun org-roam-review-open-node-if-in-review-session ()
+  (if (org-roam-review--in-review-session-p)
+      (org-roam-node-visit (org-roam-node-at-point))
+    (magit-section-show (magit-current-section))))
+
+(defun org-roam-review--forward-to-uncommented-sibling ()
+  (ignore-errors
+    (let ((section (magit-current-section))
+          (stop)
+          (found))
+      (while (not stop)
+        (magit-section-forward-sibling)
+        (setq found (not (equal 'font-lock-comment-face (get-text-property (point) 'face))))
+        (let ((unchanged (equal (magit-current-section) section)))
+          (setq stop (or found unchanged))))
+      (when found
+        (run-hooks 'org-roam-review-next-node-selected-hook)))))
+
+(defun org-roam-review--update-review-buffer-entry (node)
+  (when-let* ((buf (get-buffer "*org-roam-review*")))
+
+    (with-current-buffer buf
+      (let ((continue t)
+            (found-pos nil)
+            (id (org-roam-node-id node)))
+        (save-excursion
+          (goto-char (point-min))
+          (while (and (not found-pos) continue)
+            (if (equal id (ignore-errors (org-roam-node-id (org-roam-node-at-point))))
+                (setq continue nil
+                      found-pos (point))
+              (or (ignore-errors (magit-section-forward) t)
+                  (setq continue nil)))))
+
+        (when found-pos
+          (goto-char found-pos)
+          (when-let* ((section (magit-current-section)))
+            (when (oref section node)
+              (let ((inhibit-read-only t))
+                (put-text-property (line-beginning-position) (line-end-position) 'face 'font-lock-comment-face))
+              (magit-section-hide section))
+            (org-roam-review--forward-to-uncommented-sibling)))))))
+
+;;;###autoload
+(defun org-roam-review-accept ()
+  "Confirm review of the current node."
+  (interactive)
+  (org-roam-review--update-review-buffer-entry
+   (org-roam-review--visiting-node-at-point
+     (when-let* ((maturity (org-entry-get-with-inheritance "MATURITY")))
+       (org-roam-review--update-node-srs-properties maturity org-roam-review--maturity-score-ok))
+     (org-roam-review--update-workspace-for-completed-review)
+     (run-hooks 'org-roam-review-node-accepted-hook)
+     (run-hooks 'org-roam-review-node-processed-hook)
+     (message "Node scheduled for future review"))))
+
+;;;###autoload
+(defun org-roam-review-bury ()
+  "Confirm review of the current node and bury it."
+  (interactive)
+  (org-roam-review--update-review-buffer-entry
+   (org-roam-review--visiting-node-at-point
+     (when-let* ((maturity (org-entry-get-with-inheritance "MATURITY")))
+       (org-roam-review--update-node-srs-properties maturity org-roam-review--maturity-score-bury))
+     (org-roam-review--update-workspace-for-completed-review)
+     (run-hooks 'org-roam-review-node-buried-hook)
+     (run-hooks 'org-roam-review-node-processed-hook)
+     (message "Node buried"))))
+
+(defun org-roam-review--skip-node-for-maturity-assignment-p ()
+  (org-with-wide-buffer
+   (or (org-roam-review--daily-file-p (buffer-file-name))
+       (seq-intersection org-roam-review-ignored-tags (org-roam-review--tags-at-pt)))))
+
+;;;###autoload
+(defun org-roam-review-set-budding (&optional bury)
+  "Set the current node as a 'budding' node and confirm it's been reviewed.
+
+With prefix arg BURY, the node is less likely to be surfaced in
+the future."
+  (interactive "P")
+  (let ((score (if bury
+                   org-roam-review--maturity-score-bury
+                 org-roam-review--maturity-score-ok)))
+    (org-roam-review--update-review-buffer-entry
+     (org-roam-review--visiting-node-at-point
+       (unless (org-roam-review--skip-node-for-maturity-assignment-p)
+         (org-roam-review--update-node-srs-properties "budding" score))))))
+
+;;;###autoload
+(defun org-roam-review-set-seedling (&optional bury)
+  "Set the current node as a 'seedling' node and confirm it's been reviewed.
+
+With prefix arg BURY, the node is less likely to be surfaced in
+the future."
+  (interactive "P")
+  (let ((score (if bury
+                   org-roam-review--maturity-score-bury
+                 org-roam-review--maturity-score-revisit)))
+    (org-roam-review--update-review-buffer-entry
+     (org-roam-review--visiting-node-at-point
+       (unless (org-roam-review--skip-node-for-maturity-assignment-p)
+         (org-roam-review--update-node-srs-properties "seedling" score))))))
+
+;;;###autoload
+(defun org-roam-review-set-evergreen (&optional bury)
+  "Set the current node as an 'evergreen' node and confirm it's been reviewed.
+
+With prefix arg BURY, the node is less likely to be surfaced in
+the future."
+  (interactive "P")
+  (let ((score (if bury
+                   org-roam-review--maturity-score-bury
+                 org-roam-review--maturity-score-ok)))
+    (org-roam-review--update-review-buffer-entry
+     (org-roam-review--visiting-node-at-point
+       (unless (org-roam-review--skip-node-for-maturity-assignment-p)
+         (org-roam-review--update-node-srs-properties "evergreen" score))))))
+
+(defun org-roam-review--delete-tags-and-properties (node-id)
+  (let ((message-log-max))
+    (org-with-point-at (org-find-property "ID" node-id)
+      (atomic-change-group
+        (ignore-errors
+          (org-roam-tag-remove org-roam-review-maturity-values))
+        (dolist (name org-roam-review-properties)
+          (org-delete-property name))))))
+
+;;;###autoload
+(defun org-roam-review-set-excluded ()
+  "Exclude this node from reviews.
+
+This deletes all the properties and tags managed by this
+package."
+  (interactive)
+  (org-roam-review--visiting-node-at-point
+    (let ((id (org-entry-get (point-min) "ID")))
+      (unless id
+        (error "No ID in buffer"))
+      (org-with-point-at (org-find-property "ID" id)
+        (org-roam-review--delete-tags-and-properties id)
+        (save-buffer))
+
+      (let ((title (org-roam-node-title (org-roam-node-from-id id))))
+        (message "Excluded node `%s' from reviews" title)))))
+
+(provide 'org-roam-review)
+
+;;; org-roam-review.el ends here