15 files changed, 99 insertions, 106 deletions
diff --git a/2021/emacsconf-pentabarf.xml b/2021/emacsconf-pentabarf.xml
index b4a1dfa7..32e7684b 100644
--- a/2021/emacsconf-pentabarf.xml
+++ b/2021/emacsconf-pentabarf.xml
@@ -1,4 +1,4 @@
-<schedule><generator name="EmacsConf" version="0.1"></generator><version>20211123123719</version><conference><acronym>emacsconf2021</acronym><title>EmacsConf 2021</title><start>2021-11-27</start><end>2021-11-28</end><time_zone_name>America/Toronto</time_zone_name><base_url>https://emacsconf.org/2021</base_url></conference><day date="2021-11-27" start="2021-11-27T14:00:00Z" end="2021-11-27T22:16:00Z" index="1"><room name="Main"><event id="01" guid="dc07efcd-6d79-cfd4-fed3-59c885fe2922"><date>2021-11-27T14:00:00Z</date><start>09:00</start><language>en</language><room>Main</room><subtitle></subtitle><type>Talk</type><track>Main</track><slug>emacsconf-2021-talk-day1-open</slug><duration>0:05</duration><title>Opening remarks</title><abstract></abstract><description>Times are approximate and will probably change.
+<schedule><generator name="EmacsConf" version="0.1"></generator><version>20211123151144</version><conference><acronym>emacsconf2021</acronym><title>EmacsConf 2021</title><start>2021-11-27</start><end>2021-11-28</end><time_zone_name>America/Toronto</time_zone_name><base_url>https://emacsconf.org/2021</base_url></conference><day date="2021-11-27" start="2021-11-27T14:00:00Z" end="2021-11-27T22:16:00Z" index="1"><room name="Main"><event id="01" guid="dc07efcd-6d79-cfd4-fed3-59c885fe2922"><date>2021-11-27T14:00:00Z</date><start>09:00</start><language>en</language><room>Main</room><subtitle></subtitle><type>Talk</type><track>Main</track><slug>emacsconf-2021-talk-day1-open</slug><duration>0:05</duration><title>Opening remarks</title><abstract></abstract><description>Times are approximate and will probably change.
 
 </description><url>https://emacsconf.org/2021/talks/day1-open</url><persons><person>EmacsConf</person></persons></event><event id="02" guid="393ba3c2-b2a6-6a84-44eb-872aa333d08d"><date>2021-11-27T14:05:00Z</date><start>09:05</start><language>en</language><room>Main</room><subtitle></subtitle><type>Talk</type><track>Main</track><slug>emacsconf-2021-talk-news</slug><duration>0:05</duration><title>Emacs News Highlights</title><abstract></abstract><description>Times are approximate and will probably change.
 
diff --git a/2021/emacsconf.ics b/2021/emacsconf.ics
index 0528c350..d37961fb 100644
--- a/2021/emacsconf.ics
+++ b/2021/emacsconf.ics
@@ -13,7 +13,7 @@ UID:dc07efcd-6d79-cfd4-fed3-59c885fe2922
 URL:https://emacsconf.org/2021/talks/day1-open
 DTSTART:20211127T140000Z
 DTEND:20211127T140500Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/day1-open\n
 END:VEVENT
@@ -25,7 +25,7 @@ UID:393ba3c2-b2a6-6a84-44eb-872aa333d08d
 URL:https://emacsconf.org/2021/talks/news
 DTSTART:20211127T140500Z
 DTEND:20211127T141000Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Sacha Chua":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/news\n
@@ -39,7 +39,7 @@ UID:06df8309-bd04-eb24-d443-a780c56adc0a
 URL:https://emacsconf.org/2021/talks/frownies
 DTSTART:20211127T141100Z
 DTEND:20211127T143100Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Case Duckworth":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/frownies\n
@@ -52,7 +52,7 @@ UID:db4ccb28-867f-df24-c073-eaca6edad438
 URL:https://emacsconf.org/2021/talks/omegat
 DTSTART:20211127T143600Z
 DTEND:20211127T144600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Jean-Christophe Helary":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/omegat\n
@@ -66,7 +66,7 @@ UID:ea5bab3c-f31e-68a4-fa23-81ca67fa1990
 URL:https://emacsconf.org/2021/talks/unix
 DTSTART:20211127T144900Z
 DTEND:20211127T145600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Daniel Rose":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/unix\n
@@ -79,7 +79,7 @@ UID:6fccae45-04b5-5524-662b-fdba87754d06
 URL:https://emacsconf.org/2021/talks/montessori
 DTSTART:20211127T150000Z
 DTEND:20211127T151000Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Grant Shangreaux":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/montessori\n
@@ -92,7 +92,7 @@ UID:fe959e43-441b-ed34-854b-87f6f481f55a
 URL:https://emacsconf.org/2021/talks/pattern
 DTSTART:20211127T151300Z
 DTEND:20211127T153700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Greta Goetz":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/pattern\n
@@ -105,7 +105,7 @@ UID:48a8580f-52ce-cc84-6a23-1eddf720ae02
 URL:https://emacsconf.org/2021/talks/freedom
 DTSTART:20211127T153900Z
 DTEND:20211127T161800Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Protesilaos Stavrou":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/freedom\n
@@ -118,7 +118,7 @@ UID:525d972d-1e34-bcb4-e9c3-861942549357
 URL:https://emacsconf.org/2021/talks/nongnu
 DTSTART:20211127T162000Z
 DTEND:20211127T162700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Philip Kaludercic":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/nongnu\n
@@ -132,7 +132,7 @@ UID:245a575a-965a-caa4-8d3b-75f8519c2f3e
 URL:https://emacsconf.org/2021/talks/borg
 DTSTART:20211127T163200Z
 DTEND:20211127T164000Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Dhavan (codingquark)":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/borg\n
@@ -145,7 +145,7 @@ UID:86158391-53a2-7cb4-d7d3-020afbf6d8d9
 URL:https://emacsconf.org/2021/talks/telega
 DTSTART:20211127T164400Z
 DTEND:20211127T165200Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Gabriele Bozzola":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/telega\n
@@ -158,7 +158,7 @@ UID:e4bdc2c1-e4b6-67e4-aafb-87ec9aaf846b
 URL:https://emacsconf.org/2021/talks/nangulator
 DTSTART:20211127T165400Z
 DTEND:20211127T170400Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Kevin Haddock":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/nangulator\n
@@ -171,7 +171,7 @@ UID:716d913f-de8b-91a4-5f33-e04ba0905fa5
 URL:https://emacsconf.org/2021/talks/gregorian
 DTSTART:20211127T170700Z
 DTEND:20211127T171700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Spencer King":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/gregorian\n
@@ -184,7 +184,7 @@ UID:59e4daca-1e46-9054-9573-9c91966d6987
 URL:https://emacsconf.org/2021/talks/dev-update
 DTSTART:20211127T180000Z
 DTEND:20211127T180800Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="John Wiegley":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/dev-update\n
@@ -197,7 +197,7 @@ UID:14ab7a54-d75d-45e4-85ab-8fd2e391ea41
 URL:https://emacsconf.org/2021/talks/janitor
 DTSTART:20211127T181100Z
 DTEND:20211127T183700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Stefan Monnier":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/janitor\n
@@ -210,7 +210,7 @@ UID:51c360e6-188f-9a34-05bb-0a8d2eb09cdc
 URL:https://emacsconf.org/2021/talks/maintainers
 DTSTART:20211127T184200Z
 DTEND:20211127T185200Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Bastien Guerry":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/maintainers\n
@@ -225,7 +225,7 @@ UID:9cee7e43-bcb1-7f64-c40b-5f9ea938d11a
 URL:https://emacsconf.org/2021/talks/erg
 DTSTART:20211127T185500Z
 DTEND:20211127T190600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Noorah Alhasan":invalid:nomail
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Joe Corneli":invalid:nomail
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Raymond Puzio":invalid:nomail
@@ -241,7 +241,7 @@ UID:0f98a5bb-53ce-fb74-1003-0b1f320d414e
 URL:https://emacsconf.org/2021/talks/cs
 DTSTART:20211127T190900Z
 DTEND:20211127T191900Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Greg Coladonato":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/cs\n
@@ -255,7 +255,7 @@ UID:43cc5db4-e26f-fb44-9aeb-b16c38d8cef3
 URL:https://emacsconf.org/2021/talks/professional
 DTSTART:20211127T192200Z
 DTEND:20211127T193300Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Philip Beadling":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/professional\n
@@ -269,7 +269,7 @@ UID:a10ce62e-6454-d784-21bb-f6a0488e883c
 URL:https://emacsconf.org/2021/talks/tech
 DTSTART:20211127T193500Z
 DTEND:20211127T194600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Jan Ypma":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/tech\n
@@ -282,7 +282,7 @@ UID:b092bc88-e74c-a9c4-611b-d47c99ef578c
 URL:https://emacsconf.org/2021/talks/exec
 DTSTART:20211127T194800Z
 DTEND:20211127T195600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Tom Gillespie":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/exec\n
@@ -295,7 +295,7 @@ UID:69763d57-be4e-7e74-509b-92e48a0e7ba6
 URL:https://emacsconf.org/2021/talks/org-outside
 DTSTART:20211127T195900Z
 DTEND:20211127T201200Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Karl Voit":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/org-outside\n
@@ -308,7 +308,7 @@ UID:aed5e190-66a0-3dd4-e5eb-be09be94e6c3
 URL:https://emacsconf.org/2021/talks/teach
 DTSTART:20211127T201300Z
 DTEND:20211127T203400Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Daniel German":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/teach\n
@@ -322,7 +322,7 @@ UID:fd246cee-b5d6-7cc4-2b63-20e87bb7d750
 URL:https://emacsconf.org/2021/talks/research
 DTSTART:20211127T203800Z
 DTEND:20211127T204300Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Ahmed Khaled":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/research\n
@@ -335,7 +335,7 @@ UID:db5821ed-fef4-4934-8fb3-87a0282714de
 URL:https://emacsconf.org/2021/talks/babel
 DTSTART:20211127T204700Z
 DTEND:20211127T205700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Asilata Bapat":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/babel\n
@@ -348,7 +348,7 @@ UID:1fc4917c-aab4-1924-2983-e78f8bca6af9
 URL:https://emacsconf.org/2021/talks/molecular
 DTSTART:20211127T205900Z
 DTEND:20211127T210800Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Blaine Mooers":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/molecular\n
@@ -362,7 +362,7 @@ UID:c54c7930-51cc-5184-9dfb-5033e577b95e
 URL:https://emacsconf.org/2021/talks/project
 DTSTART:20211127T211000Z
 DTEND:20211127T212000Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Adolfo Villafiorita":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/project\n
@@ -375,7 +375,7 @@ UID:c9870e10-2600-85a4-24fb-793dfc51164e
 URL:https://emacsconf.org/2021/talks/invoice
 DTSTART:20211127T212300Z
 DTEND:20211127T213300Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Bala Ramadurai":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/invoice\n
@@ -388,7 +388,7 @@ UID:e4e995c0-6e06-8544-a8c3-5f9a06c856fb
 URL:https://emacsconf.org/2021/talks/dashboard
 DTSTART:20211127T213600Z
 DTEND:20211127T214500Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Mehmet Tekman":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/dashboard\n
@@ -402,7 +402,7 @@ UID:33776e08-e815-db94-971b-a151236e11be
 URL:https://emacsconf.org/2021/talks/nyxt
 DTSTART:20211127T214800Z
 DTEND:20211127T215700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Andrea":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/nyxt\n
@@ -415,7 +415,7 @@ UID:86d4470a-8d19-7bd4-0c53-6aba1b49baef
 URL:https://emacsconf.org/2021/talks/design
 DTSTART:20211127T220000Z
 DTEND:20211127T220700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Nicolas P. Rougier":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/design\n
@@ -428,7 +428,7 @@ UID:5287b003-f368-36c4-4f9b-8135734cad39
 URL:https://emacsconf.org/2021/talks/day1-close
 DTSTART:20211127T221100Z
 DTEND:20211127T221600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/day1-close\n
 END:VEVENT
@@ -440,19 +440,19 @@ UID:d877a57a-14cf-a194-99c3-a344ecb24acc
 URL:https://emacsconf.org/2021/talks/day2-open
 DTSTART:20211128T140000Z
 DTEND:20211128T140500Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/day2-open\n
 END:VEVENT
 BEGIN:VEVENT
-SUMMARY:How to write faster Emacs Lisp - Dmitry Gutov
+SUMMARY:Optimizing Emacs Lisp Code - Dmitry Gutov
 ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:35d1d9e4-dfdf-f254-6aab-7a466fbfaf09
 URL:https://emacsconf.org/2021/talks/faster
 DTSTART:20211128T140500Z
-DTEND:20211128T142500Z
-DTSTAMP:20211123T173719Z
+DTEND:20211128T144100Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Dmitry Gutov":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/faster\n
@@ -464,9 +464,9 @@ ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:599ef3fa-4c73-6c94-4953-75bbc7830681
 URL:https://emacsconf.org/2021/talks/structural
-DTSTART:20211128T143000Z
-DTEND:20211128T144100Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T145000Z
+DTEND:20211128T150100Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Ethan Leba":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/structural\n
@@ -477,9 +477,9 @@ ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:29d45a6f-9425-f5a4-bd23-297292e4ab7a
 URL:https://emacsconf.org/2021/talks/dsl
-DTSTART:20211128T144300Z
-DTEND:20211128T150300Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T150300Z
+DTEND:20211128T152300Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Psionic":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/dsl\n
@@ -491,35 +491,22 @@ ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:8f62e571-91da-bd14-e7c3-b445c7b19d23
 URL:https://emacsconf.org/2021/talks/ui
-DTSTART:20211128T150600Z
-DTEND:20211128T151600Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T152600Z
+DTEND:20211128T153600Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Erik Anderson":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/ui\n
 END:VEVENT
 BEGIN:VEVENT
-SUMMARY:Extending Emacs in Rust with Dynamic Modules - Tuấn-Anh Nguyễn
-ORGANIZER:EmacsConf
-LOCATION:https://emacsconf.org/
-UID:b073d391-6c37-6bf4-7afb-47edc79631a9
-URL:https://emacsconf.org/2021/talks/rust
-DTSTART:20211128T151900Z
-DTEND:20211128T153900Z
-DTSTAMP:20211123T173719Z
-ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Tuấn-Anh Nguyễn":invalid:nomail
-DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
- conf.org/2021/talks/rust\n
-END:VEVENT
-BEGIN:VEVENT
 SUMMARY:Moldable Emacs\, a step towards sustainable software - Andrea
 ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:3364aedb-a496-5c64-5383-b0080afa6d7b
 URL:https://emacsconf.org/2021/talks/mold
-DTSTART:20211128T154400Z
-DTEND:20211128T155400Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T153900Z
+DTEND:20211128T154900Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Andrea":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/mold\n
@@ -531,9 +518,9 @@ ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:5e1baaaf-56a3-b5b4-31cb-5437cf465cf9
 URL:https://emacsconf.org/2021/talks/model
-DTSTART:20211128T155800Z
-DTEND:20211128T160800Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T155300Z
+DTEND:20211128T160300Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Laszlo Krajnikovszkij":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/model\n
@@ -545,9 +532,9 @@ ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:4cd6de26-cf48-95c4-9d3b-28895a43ec53
 URL:https://emacsconf.org/2021/talks/devel
-DTSTART:20211128T161100Z
-DTEND:20211128T163100Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T160600Z
+DTEND:20211128T162600Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Stefan Kangas":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/devel\n
@@ -559,9 +546,9 @@ ORGANIZER:EmacsConf
 LOCATION:https://emacsconf.org/
 UID:1ddbe380-b4f3-2b84-3cc3-9e799536db8e
 URL:https://emacsconf.org/2021/talks/native
-DTSTART:20211128T163600Z
-DTEND:20211128T171600Z
-DTSTAMP:20211123T173719Z
+DTSTART:20211128T163100Z
+DTEND:20211128T171100Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Andrea Corallo":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/native\n
@@ -574,7 +561,7 @@ UID:5947c3e9-93c1-1014-7ffb-aa0e0097e3e4
 URL:https://emacsconf.org/2021/talks/form
 DTSTART:20211128T180000Z
 DTEND:20211128T182000Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Ian Eure":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/form\n
@@ -587,7 +574,7 @@ UID:49a35f05-b71f-1d14-2343-a6638bec0d08
 URL:https://emacsconf.org/2021/talks/bindat
 DTSTART:20211128T182400Z
 DTEND:20211128T185400Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Stefan Monnier":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/bindat\n
@@ -600,7 +587,7 @@ UID:5e162d34-ea19-8544-b693-dd6da0e885cd
 URL:https://emacsconf.org/2021/talks/test
 DTSTART:20211128T185900Z
 DTEND:20211128T190600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Eduardo Ochs":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/test\n
@@ -613,7 +600,7 @@ UID:51023225-018f-cf24-9d73-3c267907c13e
 URL:https://emacsconf.org/2021/talks/bug
 DTSTART:20211128T190700Z
 DTEND:20211128T192700Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Bastien Guerry":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/bug\n
@@ -627,7 +614,7 @@ UID:1407591a-29fd-3f64-1beb-01dea6e9d7d2
 URL:https://emacsconf.org/2021/talks/bidi
 DTSTART:20211128T193400Z
 DTEND:20211128T195400Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Mohsen BANAN":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/bidi\n
@@ -640,7 +627,7 @@ UID:e7981936-6d72-93d4-8783-5ac64a0ae5bb
 URL:https://emacsconf.org/2021/talks/eaf
 DTSTART:20211128T195900Z
 DTEND:20211128T200900Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Matthew Zeng":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/eaf\n
@@ -653,7 +640,7 @@ UID:daf3570b-3df3-9db4-a1f3-ce98d9863717
 URL:https://emacsconf.org/2021/talks/clede
 DTSTART:20211128T201300Z
 DTEND:20211128T203300Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Fermin MF":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/clede\n
@@ -666,7 +653,7 @@ UID:f03ae971-4d2b-ccc4-2643-4ae2391ce1ab
 URL:https://emacsconf.org/2021/talks/imaginary
 DTSTART:20211128T204000Z
 DTEND:20211128T205100Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Shane Mulligan":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/imaginary\n
@@ -679,7 +666,7 @@ UID:27595637-b6b9-f764-805b-ff1b7f009006
 URL:https://emacsconf.org/2021/talks/build
 DTSTART:20211128T205400Z
 DTEND:20211128T211400Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="Fermin MF":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/build\n
@@ -693,7 +680,7 @@ UID:80d1ad02-5fe4-03b4-c573-17ea6cdb61aa
 URL:https://emacsconf.org/2021/talks/forever
 DTSTART:20211128T212100Z
 DTEND:20211128T214600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 ATTENDEE;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL;CN="David Wilson (System Crafters)":invalid:nomail
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/forever\n
@@ -706,7 +693,7 @@ UID:828e7c62-8430-f1a4-431b-63c308d58688
 URL:https://emacsconf.org/2021/talks/day2-close
 DTSTART:20211128T220600Z
 DTEND:20211128T221600Z
-DTSTAMP:20211123T173719Z
+DTSTAMP:20211123T201448Z
 DESCRIPTION: Times are approximate and will probably change.\nhttps://emacs
  conf.org/2021/talks/day2-close\n
 END:VEVENT
diff --git a/2021/info/day2-open-nav.md b/2021/info/day2-open-nav.md
index ec25c8da..c53c11ee 100644
--- a/2021/info/day2-open-nav.md
+++ b/2021/info/day2-open-nav.md
@@ -1,3 +1,3 @@
 Back to the [[schedule]]  
 Previous: <a href="/2021/talks/day1-close">Closing remarks day 1</a>  
-Next: <a href="/2021/talks/faster">How to write faster Emacs Lisp</a>  
+Next: <a href="/2021/talks/faster">Optimizing Emacs Lisp Code</a>  
diff --git a/2021/info/devel-schedule.md b/2021/info/devel-schedule.md
index 88f734b1..fb5e44ad 100644
--- a/2021/info/devel-schedule.md
+++ b/2021/info/devel-schedule.md
@@ -2,7 +2,7 @@
 
 Status: Waiting for speaker to send prerecorded video  
 Duration: 20 minutes  
-<div class="times" start="2021-11-28T16:11:00Z" end="2021-11-28T16:31:00Z">Sunday, Nov 28 2021, ~11:11 AM - 11:31 AM EST<br />Sunday, Nov 28 2021, ~ 8:11 AM -  8:31 AM PST<br />Sunday, Nov 28 2021, ~ 4:11 PM -  4:31 PM UTC<br />Sunday, Nov 28 2021, ~ 5:11 PM -  5:31 PM CET<br />Sunday, Nov 28 2021, ~ 6:11 PM -  6:31 PM EET<br />Sunday, Nov 28 2021, ~ 9:41 PM - 10:01 PM IST<br />Monday, Nov 29 2021, ~12:11 AM - 12:31 AM +08<br />Monday, Nov 29 2021, ~ 1:11 AM -  1:31 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T16:06:00Z" end="2021-11-28T16:26:00Z">Sunday, Nov 28 2021, ~11:06 AM - 11:26 AM EST<br />Sunday, Nov 28 2021, ~ 8:06 AM -  8:26 AM PST<br />Sunday, Nov 28 2021, ~ 4:06 PM -  4:26 PM UTC<br />Sunday, Nov 28 2021, ~ 5:06 PM -  5:26 PM CET<br />Sunday, Nov 28 2021, ~ 6:06 PM -  6:26 PM EET<br />Sunday, Nov 28 2021, ~ 9:36 PM -  9:56 PM IST<br />Monday, Nov 29 2021, ~12:06 AM - 12:26 AM +08<br />Monday, Nov 29 2021, ~ 1:06 AM -  1:26 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/dsl-schedule.md b/2021/info/dsl-schedule.md
index 57425baa..639ada56 100644
--- a/2021/info/dsl-schedule.md
+++ b/2021/info/dsl-schedule.md
@@ -3,7 +3,7 @@
 Q&A: answering after the conference  
 Status: Waiting for speaker to send prerecorded video  
 Duration: 20 minutes  
-<div class="times" start="2021-11-28T14:43:00Z" end="2021-11-28T15:03:00Z">Sunday, Nov 28 2021, ~ 9:43 AM - 10:03 AM EST<br />Sunday, Nov 28 2021, ~ 6:43 AM -  7:03 AM PST<br />Sunday, Nov 28 2021, ~ 2:43 PM -  3:03 PM UTC<br />Sunday, Nov 28 2021, ~ 3:43 PM -  4:03 PM CET<br />Sunday, Nov 28 2021, ~ 4:43 PM -  5:03 PM EET<br />Sunday, Nov 28 2021, ~ 8:13 PM -  8:33 PM IST<br />Sunday, Nov 28 2021, ~10:43 PM - 11:03 PM +08<br />Sunday, Nov 28 2021, ~11:43 PM - 12:03 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T15:03:00Z" end="2021-11-28T15:23:00Z">Sunday, Nov 28 2021, ~10:03 AM - 10:23 AM EST<br />Sunday, Nov 28 2021, ~ 7:03 AM -  7:23 AM PST<br />Sunday, Nov 28 2021, ~ 3:03 PM -  3:23 PM UTC<br />Sunday, Nov 28 2021, ~ 4:03 PM -  4:23 PM CET<br />Sunday, Nov 28 2021, ~ 5:03 PM -  5:23 PM EET<br />Sunday, Nov 28 2021, ~ 8:33 PM -  8:53 PM IST<br />Sunday, Nov 28 2021, ~11:03 PM - 11:23 PM +08<br />Monday, Nov 29 2021, ~12:03 AM - 12:23 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/faster-schedule.md b/2021/info/faster-schedule.md
index c8c0103a..1274437c 100644
--- a/2021/info/faster-schedule.md
+++ b/2021/info/faster-schedule.md
@@ -2,8 +2,8 @@
 
 Q&A: live  
 Status: Waiting for speaker to send prerecorded video  
-Duration: 20 minutes  
-<div class="times" start="2021-11-28T14:05:00Z" end="2021-11-28T14:25:00Z">Sunday, Nov 28 2021, ~ 9:05 AM -  9:25 AM EST<br />Sunday, Nov 28 2021, ~ 6:05 AM -  6:25 AM PST<br />Sunday, Nov 28 2021, ~ 2:05 PM -  2:25 PM UTC<br />Sunday, Nov 28 2021, ~ 3:05 PM -  3:25 PM CET<br />Sunday, Nov 28 2021, ~ 4:05 PM -  4:25 PM EET<br />Sunday, Nov 28 2021, ~ 7:35 PM -  7:55 PM IST<br />Sunday, Nov 28 2021, ~10:05 PM - 10:25 PM +08<br />Sunday, Nov 28 2021, ~11:05 PM - 11:25 PM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+Duration: 36 minutes  
+<div class="times" start="2021-11-28T14:05:00Z" end="2021-11-28T14:41:00Z">Sunday, Nov 28 2021, ~ 9:05 AM -  9:41 AM EST<br />Sunday, Nov 28 2021, ~ 6:05 AM -  6:41 AM PST<br />Sunday, Nov 28 2021, ~ 2:05 PM -  2:41 PM UTC<br />Sunday, Nov 28 2021, ~ 3:05 PM -  3:41 PM CET<br />Sunday, Nov 28 2021, ~ 4:05 PM -  4:41 PM EET<br />Sunday, Nov 28 2021, ~ 7:35 PM -  8:11 PM IST<br />Sunday, Nov 28 2021, ~10:05 PM - 10:41 PM +08<br />Sunday, Nov 28 2021, ~11:05 PM - 11:41 PM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/model-schedule.md b/2021/info/model-schedule.md
index 90f3a0da..b8c5e580 100644
--- a/2021/info/model-schedule.md
+++ b/2021/info/model-schedule.md
@@ -3,7 +3,7 @@
 Q&A: after the conference  
 Status: Captions added to video  
 Duration: 9:49  
-<div class="times" start="2021-11-28T15:58:00Z" end="2021-11-28T16:08:00Z">Sunday, Nov 28 2021, ~10:58 AM - 11:08 AM EST<br />Sunday, Nov 28 2021, ~ 7:58 AM -  8:08 AM PST<br />Sunday, Nov 28 2021, ~ 3:58 PM -  4:08 PM UTC<br />Sunday, Nov 28 2021, ~ 4:58 PM -  5:08 PM CET<br />Sunday, Nov 28 2021, ~ 5:58 PM -  6:08 PM EET<br />Sunday, Nov 28 2021, ~ 9:28 PM -  9:38 PM IST<br />Sunday, Nov 28 2021, ~11:58 PM - 12:08 AM +08<br />Monday, Nov 29 2021, ~12:58 AM -  1:08 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T15:53:00Z" end="2021-11-28T16:03:00Z">Sunday, Nov 28 2021, ~10:53 AM - 11:03 AM EST<br />Sunday, Nov 28 2021, ~ 7:53 AM -  8:03 AM PST<br />Sunday, Nov 28 2021, ~ 3:53 PM -  4:03 PM UTC<br />Sunday, Nov 28 2021, ~ 4:53 PM -  5:03 PM CET<br />Sunday, Nov 28 2021, ~ 5:53 PM -  6:03 PM EET<br />Sunday, Nov 28 2021, ~ 9:23 PM -  9:33 PM IST<br />Sunday, Nov 28 2021, ~11:53 PM - 12:03 AM +08<br />Monday, Nov 29 2021, ~12:53 AM -  1:03 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/mold-schedule.md b/2021/info/mold-schedule.md
index fcaa51d9..340753b7 100644
--- a/2021/info/mold-schedule.md
+++ b/2021/info/mold-schedule.md
@@ -3,7 +3,7 @@
 Q&A: IRC or Etherpad  
 Status: Captions added to video  
 Duration: 9:34  
-<div class="times" start="2021-11-28T15:44:00Z" end="2021-11-28T15:54:00Z">Sunday, Nov 28 2021, ~10:44 AM - 10:54 AM EST<br />Sunday, Nov 28 2021, ~ 7:44 AM -  7:54 AM PST<br />Sunday, Nov 28 2021, ~ 3:44 PM -  3:54 PM UTC<br />Sunday, Nov 28 2021, ~ 4:44 PM -  4:54 PM CET<br />Sunday, Nov 28 2021, ~ 5:44 PM -  5:54 PM EET<br />Sunday, Nov 28 2021, ~ 9:14 PM -  9:24 PM IST<br />Sunday, Nov 28 2021, ~11:44 PM - 11:54 PM +08<br />Monday, Nov 29 2021, ~12:44 AM - 12:54 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T15:39:00Z" end="2021-11-28T15:49:00Z">Sunday, Nov 28 2021, ~10:39 AM - 10:49 AM EST<br />Sunday, Nov 28 2021, ~ 7:39 AM -  7:49 AM PST<br />Sunday, Nov 28 2021, ~ 3:39 PM -  3:49 PM UTC<br />Sunday, Nov 28 2021, ~ 4:39 PM -  4:49 PM CET<br />Sunday, Nov 28 2021, ~ 5:39 PM -  5:49 PM EET<br />Sunday, Nov 28 2021, ~ 9:09 PM -  9:19 PM IST<br />Sunday, Nov 28 2021, ~11:39 PM - 11:49 PM +08<br />Monday, Nov 29 2021, ~12:39 AM - 12:49 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/native-schedule.md b/2021/info/native-schedule.md
index f9931fd7..0e579943 100644
--- a/2021/info/native-schedule.md
+++ b/2021/info/native-schedule.md
@@ -3,7 +3,7 @@
 Q&A: probably after the conference  
 Status: Waiting for speaker to send prerecorded video  
 Duration: 40 minutes  
-<div class="times" start="2021-11-28T16:36:00Z" end="2021-11-28T17:16:00Z">Sunday, Nov 28 2021, ~11:36 AM - 12:16 PM EST<br />Sunday, Nov 28 2021, ~ 8:36 AM -  9:16 AM PST<br />Sunday, Nov 28 2021, ~ 4:36 PM -  5:16 PM UTC<br />Sunday, Nov 28 2021, ~ 5:36 PM -  6:16 PM CET<br />Sunday, Nov 28 2021, ~ 6:36 PM -  7:16 PM EET<br />Sunday, Nov 28 2021, ~10:06 PM - 10:46 PM IST<br />Monday, Nov 29 2021, ~12:36 AM -  1:16 AM +08<br />Monday, Nov 29 2021, ~ 1:36 AM -  2:16 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T16:31:00Z" end="2021-11-28T17:11:00Z">Sunday, Nov 28 2021, ~11:31 AM - 12:11 PM EST<br />Sunday, Nov 28 2021, ~ 8:31 AM -  9:11 AM PST<br />Sunday, Nov 28 2021, ~ 4:31 PM -  5:11 PM UTC<br />Sunday, Nov 28 2021, ~ 5:31 PM -  6:11 PM CET<br />Sunday, Nov 28 2021, ~ 6:31 PM -  7:11 PM EET<br />Sunday, Nov 28 2021, ~10:01 PM - 10:41 PM IST<br />Monday, Nov 29 2021, ~12:31 AM -  1:11 AM +08<br />Monday, Nov 29 2021, ~ 1:31 AM -  2:11 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/rust-schedule.md b/2021/info/rust-schedule.md
index 635da74c..714d33ef 100644
--- a/2021/info/rust-schedule.md
+++ b/2021/info/rust-schedule.md
@@ -1,9 +1,9 @@
 <!-- Automatically generated by conf-create-info-pages -->
 
-Q&A: IRC or Etherpad  
-Status: Waiting for speaker to send prerecorded video  
+Q&A: talk cancelled  
+Status: Cancelled  
 Duration: 20 minutes  
-<div class="times" start="2021-11-28T15:19:00Z" end="2021-11-28T15:39:00Z">Sunday, Nov 28 2021, ~10:19 AM - 10:39 AM EST<br />Sunday, Nov 28 2021, ~ 7:19 AM -  7:39 AM PST<br />Sunday, Nov 28 2021, ~ 3:19 PM -  3:39 PM UTC<br />Sunday, Nov 28 2021, ~ 4:19 PM -  4:39 PM CET<br />Sunday, Nov 28 2021, ~ 5:19 PM -  5:39 PM EET<br />Sunday, Nov 28 2021, ~ 8:49 PM -  9:09 PM IST<br />Sunday, Nov 28 2021, ~11:19 PM - 11:39 PM +08<br />Monday, Nov 29 2021, ~12:19 AM - 12:39 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+
 
 # Description
 
diff --git a/2021/info/structural-nav.md b/2021/info/structural-nav.md
index bf8f4de3..58b17e57 100644
--- a/2021/info/structural-nav.md
+++ b/2021/info/structural-nav.md
@@ -1,3 +1,3 @@
 Back to the [[schedule]]  
-Previous: <a href="/2021/talks/faster">How to write faster Emacs Lisp</a>  
+Previous: <a href="/2021/talks/faster">Optimizing Emacs Lisp Code</a>  
 Next: <a href="/2021/talks/dsl">Self-Describing Smart DSL's: The Next Magits</a>  
diff --git a/2021/info/structural-schedule.md b/2021/info/structural-schedule.md
index 42b29894..6d9ca208 100644
--- a/2021/info/structural-schedule.md
+++ b/2021/info/structural-schedule.md
@@ -3,7 +3,7 @@
 Q&A: live  
 Status: Captions added to video  
 Duration: 10:24  
-<div class="times" start="2021-11-28T14:30:00Z" end="2021-11-28T14:41:00Z">Sunday, Nov 28 2021, ~ 9:30 AM -  9:41 AM EST<br />Sunday, Nov 28 2021, ~ 6:30 AM -  6:41 AM PST<br />Sunday, Nov 28 2021, ~ 2:30 PM -  2:41 PM UTC<br />Sunday, Nov 28 2021, ~ 3:30 PM -  3:41 PM CET<br />Sunday, Nov 28 2021, ~ 4:30 PM -  4:41 PM EET<br />Sunday, Nov 28 2021, ~ 8:00 PM -  8:11 PM IST<br />Sunday, Nov 28 2021, ~10:30 PM - 10:41 PM +08<br />Sunday, Nov 28 2021, ~11:30 PM - 11:41 PM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T14:50:00Z" end="2021-11-28T15:01:00Z">Sunday, Nov 28 2021, ~ 9:50 AM - 10:01 AM EST<br />Sunday, Nov 28 2021, ~ 6:50 AM -  7:01 AM PST<br />Sunday, Nov 28 2021, ~ 2:50 PM -  3:01 PM UTC<br />Sunday, Nov 28 2021, ~ 3:50 PM -  4:01 PM CET<br />Sunday, Nov 28 2021, ~ 4:50 PM -  5:01 PM EET<br />Sunday, Nov 28 2021, ~ 8:20 PM -  8:31 PM IST<br />Sunday, Nov 28 2021, ~10:50 PM - 11:01 PM +08<br />Sunday, Nov 28 2021, ~11:50 PM - 12:01 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/info/ui-schedule.md b/2021/info/ui-schedule.md
index eddf1305..a8740469 100644
--- a/2021/info/ui-schedule.md
+++ b/2021/info/ui-schedule.md
@@ -3,7 +3,7 @@
 Q&A: live Q&A or Etherpad  
 Status: Prerecorded video received, waiting for captions  
 Duration: 10 minutes  
-<div class="times" start="2021-11-28T15:06:00Z" end="2021-11-28T15:16:00Z">Sunday, Nov 28 2021, ~10:06 AM - 10:16 AM EST<br />Sunday, Nov 28 2021, ~ 7:06 AM -  7:16 AM PST<br />Sunday, Nov 28 2021, ~ 3:06 PM -  3:16 PM UTC<br />Sunday, Nov 28 2021, ~ 4:06 PM -  4:16 PM CET<br />Sunday, Nov 28 2021, ~ 5:06 PM -  5:16 PM EET<br />Sunday, Nov 28 2021, ~ 8:36 PM -  8:46 PM IST<br />Sunday, Nov 28 2021, ~11:06 PM - 11:16 PM +08<br />Monday, Nov 29 2021, ~12:06 AM - 12:16 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
+<div class="times" start="2021-11-28T15:26:00Z" end="2021-11-28T15:36:00Z">Sunday, Nov 28 2021, ~10:26 AM - 10:36 AM EST<br />Sunday, Nov 28 2021, ~ 7:26 AM -  7:36 AM PST<br />Sunday, Nov 28 2021, ~ 3:26 PM -  3:36 PM UTC<br />Sunday, Nov 28 2021, ~ 4:26 PM -  4:36 PM CET<br />Sunday, Nov 28 2021, ~ 5:26 PM -  5:36 PM EET<br />Sunday, Nov 28 2021, ~ 8:56 PM -  9:06 PM IST<br />Sunday, Nov 28 2021, ~11:26 PM - 11:36 PM +08<br />Monday, Nov 29 2021, ~12:26 AM - 12:36 AM JST<br /><a href="/2021/">Find out how to watch and participate</a></div>
 
 # Description
 
diff --git a/2021/schedule-details.md b/2021/schedule-details.md
index 9552dc47..9802457e 100644
--- a/2021/schedule-details.md
+++ b/2021/schedule-details.md
@@ -36,15 +36,15 @@
 <tr><td colspan="4"><strong>Sunday, Nov 28, 2021: Development talks<strong></td></tr>
 <tr><td colspan="4"><strong>Sunday morning<strong></td></tr>
 <tr><td></td><td width=100>~ 9:00 AM</td><td><a href="/2021/talks/day2-open">Opening remarks day 2</a></td><td></td></tr>
-<tr><td></td><td width=100>~ 9:05 AM</td><td><a href="/2021/talks/faster">How to write faster Emacs Lisp</a></td><td>Dmitry Gutov</td></tr>
-<tr><td>captioned</td><td width=100>~ 9:30 AM</td><td><a href="/2021/talks/structural">Tree-edit: Structural editing for Java, Python, C, and beyond!</a></td><td>Ethan Leba</td></tr>
-<tr><td></td><td width=100>~ 9:43 AM</td><td><a href="/2021/talks/dsl">Self-Describing Smart DSL's: The Next Magits</a></td><td>Psionic</td></tr>
-<tr><td>received</td><td width=100>~10:06 AM</td><td><a href="/2021/talks/ui">Yak-shaving to a UI framework (/Help! I accidentally yak-shaved my way to writing a UI framework because overlays were slow/)</a></td><td>Erik Anderson</td></tr>
+<tr><td></td><td width=100>~ 9:05 AM</td><td><a href="/2021/talks/faster">Optimizing Emacs Lisp Code</a></td><td>Dmitry Gutov</td></tr>
+<tr><td>captioned</td><td width=100>~ 9:50 AM</td><td><a href="/2021/talks/structural">Tree-edit: Structural editing for Java, Python, C, and beyond!</a></td><td>Ethan Leba</td></tr>
+<tr><td></td><td width=100>~10:03 AM</td><td><a href="/2021/talks/dsl">Self-Describing Smart DSL's: The Next Magits</a></td><td>Psionic</td></tr>
+<tr><td>received</td><td width=100>~10:26 AM</td><td><a href="/2021/talks/ui">Yak-shaving to a UI framework (/Help! I accidentally yak-shaved my way to writing a UI framework because overlays were slow/)</a></td><td>Erik Anderson</td></tr>
 <tr><td></td><td width=100>~10:19 AM</td><td><a href="/2021/talks/rust">Extending Emacs in Rust with Dynamic Modules</a></td><td>Tuấn-Anh Nguyễn</td></tr>
-<tr><td>captioned</td><td width=100>~10:44 AM</td><td><a href="/2021/talks/mold">Moldable Emacs, a step towards sustainable software</a></td><td>Andrea</td></tr>
-<tr><td>captioned</td><td width=100>~10:58 AM</td><td><a href="/2021/talks/model">Extending the "model" of Emacs to other applications</a></td><td>Laszlo Krajnikovszkij</td></tr>
-<tr><td></td><td width=100>~11:11 AM</td><td><a href="/2021/talks/devel">Don't write that package! or: How I learned to stop worrying and love emacs-devel</a></td><td>Stefan Kangas</td></tr>
-<tr><td></td><td width=100>~11:36 AM</td><td><a href="/2021/talks/native">Emacs Lisp native compiler, current status and future developments</a></td><td>Andrea Corallo</td></tr>
+<tr><td>captioned</td><td width=100>~10:39 AM</td><td><a href="/2021/talks/mold">Moldable Emacs, a step towards sustainable software</a></td><td>Andrea</td></tr>
+<tr><td>captioned</td><td width=100>~10:53 AM</td><td><a href="/2021/talks/model">Extending the "model" of Emacs to other applications</a></td><td>Laszlo Krajnikovszkij</td></tr>
+<tr><td></td><td width=100>~11:06 AM</td><td><a href="/2021/talks/devel">Don't write that package! or: How I learned to stop worrying and love emacs-devel</a></td><td>Stefan Kangas</td></tr>
+<tr><td></td><td width=100>~11:31 AM</td><td><a href="/2021/talks/native">Emacs Lisp native compiler, current status and future developments</a></td><td>Andrea Corallo</td></tr>
 <tr><td colspan="4"><strong>Sunday afternoon<strong></td></tr>
 <tr><td></td><td width=100>~ 1:00 PM</td><td><a href="/2021/talks/form">Old McCarthy Had a Form</a></td><td>Ian Eure</td></tr>
 <tr><td>received</td><td width=100>~ 1:24 PM</td><td><a href="/2021/talks/bindat">Turbo Bindat</a></td><td>Stefan Monnier</td></tr>
diff --git a/2021/talks/faster.md b/2021/talks/faster.md
index 60539629..803579f9 100644
--- a/2021/talks/faster.md
+++ b/2021/talks/faster.md
@@ -4,12 +4,18 @@
 
 <!-- You can manually edit this file to update the abstract, add links, etc. --->
 
-
-# How to write faster Emacs Lisp
+# Optimizing Emacs Lisp Code
 Dmitry Gutov
 
 [[!inline pages="internal(2021/info/faster-schedule)" raw="yes"]]
 
+[[!table header="no" class="speaker-details" data="""
+Name pronunciation: | d-MEET-ri GOO-tov
+Pronouns: | he/his 
+Homepage: | <https://github.com/dgutov/>
+Preferred contact info | <dgutov@yandex.ru> 
+"""]]
+
 -   Before optimizing, benchmark first.
 -   Different benchmarking approaches.
 -   Live evaluation, step-debugging, measuring from a debugger breakpoint.