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diff --git a/2021/talks/eaf.md b/2021/talks/eaf.md
index 78a52c78..6fc946a6 100644
--- a/2021/talks/eaf.md
+++ b/2021/talks/eaf.md
@@ -19,6 +19,50 @@ last year, this talk will briefly go over them.
 
 IRC nick: matthewzmd
 
+-   Q1: Any plans for supporting other languages?  It\'d be great to use
+    EAF to offload processing to Common Lisp, for example.
+    -   A: You\'re able to use Python & JavaScrpt/Vue to extend on top
+        of Elisp, it is so far enough (Python for Qt apps and JS for web
+        apps). Currently I don\'t see a clear advantage of using Common
+        Lisp as well, but there could definitely be a support in theory.
+-   Q2: is there an eaf-app that\'s not a bootstrapping nightmare?
+    (having Vue as a dependency, eg)
+    -   A: I don\'t fully understand what you mean by \"bootstrapping
+        nightmare\", all these dependencies are system dependencies that
+        you install like any other system dependency, it doesn\'t slow
+        the Emacs startup nor the system startup. But if you\'re asking
+        for an app suggestion with lightweight dependencies without JS
+        or Vue dependencies, the popular EAF Browser and EAF PDF Viewer
+        are cool app options.
+-   Q3: Are there security implications to having a browser in emacs?
+    -   A \[opalvaults\]: With how Emacs deals with things like
+        GPG/pass/etc. I feel like it\'s probably as secure as you make
+        it?
+    -   A: \[matthewzmd\] the browser application is independent from
+        emacs itself, you\'re using a browser in emacs, but the browser
+        is not actually \*in\* emacs. The browser is QtWebEngine, a
+        modified Chromium without Google stuff, it is as safe as a
+        Chromium can be.
+-   Q4: maybe i misunderstood, but is every eaf app essentially embedded
+    QT?
+    -   A: yes, it\'s built upon qt-webengine 
+    -   A: Yes, it uses PyQt5 and it\'s essentially painting the Qt
+        frame on top of emacs, simulating a buffer. EPC is used for
+        Elisp \<-\> Python \<-\> JS communication so that you can extend
+        Emacs in various langauges
+        -   Q: I guess/hope this is using qtwebengine, not qtwebkit?
+            -   A: right, qtwebengine.  If you wanna dig more into the
+                internals of EAF, I suggest you to read this part of the
+                Wiki
+                (<https://github.com/emacs-eaf/emacs-application-framework/wiki/Hacking)>
+                or my talk from last year
+                (<https://emacsconf.org/2020/talks/34/)>
+-   Q5: Can the EAF dependencies be made into dynamically loadable
+    modules for Emacs, so there will be no need to rebuilt Emacs?
+    -   A: There is no need to rebuilt Emacs, they\'re simply
+        dependencies that you can install using the system package
+        managers (pacman, apt, etc), npm install and pip install
+
 - One thing I never tried watching all this is viewing PDF files within emacs.
 - is there an eaf-app that's not a bootstrapping nightmare? I suppose having Vue as dependency makes that not so for a large number
 - This is pretty cool, from a security standpoint, I'm not sure I'd want a web browser in emacs all that much.
@@ -31,6 +75,28 @@ IRC nick: matthewzmd
   - I guess/hope this is using qtwebengine, not qtwebkit? ('cos qtwebkit is unmaintained and by now massively insecure)
   - matthewzmd: if you wanna dig more into the internals of EAF, I suggest you to read this part of the Wiki (<https://github.com/emacs-eaf/emacs-application-framework/wiki/Hacking>) or my talk from last year (<https://emacsconf.org/2020/talks/34/>)
 
+Links and other notes:
+
+-   you might find the this bench-multi-lexical macro useful:
+    <https://alphapapa.github.io/emacs-package-dev-handbook/#outline-container-Optimization>
+    or
+    <https://github.com/alphapapa/emacs-package-dev-handbook#bench-multi-lexical> 
+-   <https://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/emacs-lisp/elp.el>
+-   <https://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/emacs-lisp/benchmark.el>
+-   \"Use hash tables kids!\"
+-   PSA: buffer-local-value is generally much faster than
+    with-current-buffer if all you need to do is get the value of a
+    variable in a buffer 
+-   EIEIO\'s object construction is slow because it goes through
+    \`make-instance\` which is a generic function and it itself calls
+    various other generic functions, so there\'s a lot of cl-generic
+    dispatch overhead; and then there\'s the fact that the (keyword)
+    arguments are laboriously parsed at run-time so it itself is slow as
+    well.
+-   There is a pending patch to represent the set of a buffer\'s
+    overlays as an AAtree or somesuch.
+-   <https://media.emacsconf.org/2021/emacsconf-2021-faster--optimizing-emacs-lisp-code--dmitry-gutov.el>
+
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