2019/talks/: import a few more

notes and transcripts of quiliro's talk imported from
<https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-12-ledger-mode--notes--quiliro.org>
and
<https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-12-ledger-mode--transcript--quiliro.org>
with minor corrections (mostly formatting improvements).

3 files changed, 302 insertions, 1 deletions

diff --git a/2019/talks/10.md b/2019/talks/10.md
index af1b1b5a..b48bf9a1 100644
--- a/2019/talks/10.md
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@@ -11,7 +11,7 @@ type="video/webm"]]
 
 ### Notes
 
-```
+```org
 #+TITLE: Notmuch New(s)
 #+AUTHOR: David Bremner
 #+PROPERTY: header-args:sh :results output :session demo :output session
diff --git a/2019/talks/11.md b/2019/talks/11.md
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--- /dev/null
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@@ -0,0 +1,11 @@
+[[!meta title="Browsing Twitch.tv from Emacs - Aaron Jacobs"]]
+[[!meta copyright="Copyright © 2019 Aaron Jacobs"]]
+
+[[!template  id=vid
+src="https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-11-browsing-twitch-from-emacs--helm-twitch--ajacobs.webm"
+type="video/webm"]]
+
+### Download
+
+- [Video](https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-11-browsing-twitch-from-emacs--helm-twitch--ajacobs.webm)
+- [Slides](https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-11-browsing-twitch-from-emacs--helm-twitch--slides--ajacobs.html)
diff --git a/2019/talks/12.md b/2019/talks/12.md
new file mode 100644
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--- /dev/null
+++ b/2019/talks/12.md
@@ -0,0 +1,290 @@
+[[!meta title="Ledger-mode - Quiliro Ordóñez"]]
+[[!meta copyright="Copyright © 2019 Quiliro Ordóñez"]]
+
+[[!template  id=vid
+src="https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-12-ledger-mode--quiliro.webm"
+type="video/webm"]]
+
+### Download
+
+- [Video](https://mirror.csclub.uwaterloo.ca/emacsconf/2019/emacsconf-2019-12-ledger-mode--quiliro.webm)
+
+### Notes
+
+```org
+* What is plain text accounting?
+  'Doing all accounting on plain text files'
+  - Flexibility :: Easier to adapt to situations
+  - Security :: YOU control of your data
+  - Traceability :: Control your processes
+
+* What is ledger-cli
+  Ledger is a powerful, double-entry plain-text accounting system that
+  is accessed from the UNIX command-line.
+  - Flexibility ::  Multiple currencies (even imaginary), infinite
+    account recursion
+  - Auditability :: No secrets
+  - Stability :: Small footprint, yet powerful
+  - Performance :: Lightweight
+  - Reports, reports and reports :: Ask for anything
+
+* What is ledger-mode
+  Performance at your fingertips.
+  - Transactions now easy
+  - all-terrain vehicle
+  - Quick Workflow
+
+* ledger-mode examples
+
+** New transaction
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c> <RET> <BKSP> 0 <RET>
+   4. <C-c C-a> 01 <RET>
+   5. Mike's Store
+   6. <RET> <TAB>, Expenses:Food
+   7. (<SPC>*2) $25
+   8. <RET>, Assets:CheckingAccount
+   9. M-q
+
+** Copying transactions
+   1) Open Emacs
+   2) <C-x C-f> books.ledger
+   3) <C-c C-a> 02 <RET>
+   4) MegaPaper
+   5) <RET> <TAB>, Expenses:Supplies
+   6) (<SPC>*2) $12
+   7) <RET>, Assets:CheckingAccount
+   8) M-q
+   9) C-c C-k
+   10) 03 <RET>
+   11) (<SUPR>*2) 34
+
+** Account balance
+   1. Open Emacs
+   2. <C-x C-f books.ledger
+   3. bucket Assets:CreditCard
+   4. <C-c C-a> 04 <RET>
+   5. Novo-PC
+   6. <RET> <TAB> Assets:Technology
+   7. (<SPC>*2) $23
+   8. M-q
+   9. C-c C-k
+   10. 05 <RET>
+   11. (<SUPR>*2) 50
+   12. M-q
+   13. <M-b M-b>
+   14. <C-c C-p> <RET>
+
+** Transactions' report
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c C-a> 06 <RET>
+   4. MegaPaper
+   5. <RET> <TAB>, Expenses:Supplies
+   6. (<SPC>*2) $15
+   7. <RET>, Assets:CheckingAccount
+   8. M-q
+   9. <C-c C-o C-r> y reg
+   10. <RET>
+   11. q
+
+** Account prediction (done before)
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c C-a> 07 <RET>
+   4. MegaPaper
+   5. <RET> <TAB>, Expenses:Supplies
+   6. (<SPC>*2) $18
+   7. <RET>, Assets:CheckingAccount
+   8. M-q
+
+** Accounts payable
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c C-a> 08 <RET>
+   4. Mike's Store
+   5. <RET> <TAB>, Expenses:Food
+   6. (<SPC>*2) $47
+   7. <RET>, Liabilities:AccountsPayable
+   8. C-c C-a 09 <RET> me <TAB>
+   9. <RET> <TAB> l <TAB> a <TAB>
+   10. (<SPC>*2) $100
+   11. <RET> a <TAB> c <TAB>
+   12. M-q
+   13. C-p
+   14. <C-c C-p> <RET>
+
+** Accounts receivable
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c C-a> 10 <RET>
+   4. Ministry of Culture
+   5. <RET> <TAB>, a <TAB> :AccountsReceivable:NatGov
+   6. (<SPC>*2) $4000
+   7. <RET>, Income:Sales
+   8. M-q
+   9. C-p
+   10. <C-c C-p> <RET>
+
+** Payee list (done before)
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c C-a> 11 <RET>
+   4. MegaPaper
+   5. <RET> <TAB>, e <TAB> s <TAB>
+   6. (<SPC>*2) $56 <RET>
+   7. Assets:CheckingAccount
+   8. M-q
+   9. C-p M-b
+   10. <C-c C-o C-r> payee (<RET>*2)
+
+** Net worth
+   1. Open Emacs
+   2. <C-x C-f> books.ledger
+   3. <C-c C-a> 12 <RET>
+   4. m <TAB>
+   5. <RET> <TAB>, l <TAB> <TAB>
+   6. (<SPC>*2) $55
+   7. <RET>, a <TAB> c <TAB>
+   8. M-q
+   9. C-c C-p Income|Liabilities
+
+* Example ledger-cli file
+
+; -*- ledger -*-
+
+2019/11/01 Mike's Store
+    Expenses:Food                                $25
+    Assets:CheckingAccount
+
+2019/11/02 MegaPaper
+    Expenses:Supplies                            $12
+    Assets:CheckingAccount
+
+2019/11/03 MegaPaper
+    Expenses:Supplies                            $34
+    Assets:CheckingAccount
+
+bucket Assets:CreditCard
+
+2019/11/04 Novo PC
+    Assets:Technology                            $23
+
+2019/11/05 Novo PC
+    Assets:Technology                            $50
+
+2019/11/06 MegaPaper
+    Expenses:Supplies                            $15
+    Assets:CheckingAccount
+
+2019/11/07 MegaPaper
+    Expenses:Supplies                            $18
+    Assets:CheckingAccount
+
+2019/11/08 Mike's Store
+    Expenses:Food                                $47
+    Liabilities:AccountsPayable
+
+2019/11/09 MegaPaper
+    Liabilities:AccountsPayable                 $100
+    Assets:CheckingAccount
+
+2019/11/10 Ministry of Culture
+    Assets:AccountsReceivable:NatGov           $4000
+    Income:Sales
+
+2019/11/11 MegaPaper
+    Expenses:Supplies                            $56
+    Assets:CheckingAccount
+
+2019/11/12 MegaPaper
+    Liabilities:AccountsPayable                  $55
+    Assets:CheckingAccount
+
+;;; books.ledger ends here
+```
+
+### Transcript
+
+```org
+Hello.  My name is Quiliro Ordóñez.  I am from Quito, Ecuador [, South
+America, America] and would like to present [to you]: How you can save
+money by knowing what you have.
+
+This presentation is licensed under the terms of the Creative Commons
+Attribution-ShareAlike 4.0 International Public License.
+
+[Saving money can be done by using plain text accounting to know
+profoundly what you own.]  What is plain-text accounting?  Plain-text
+accounting is doing all your accounting on plain-text files.  Why do
+it on plain-text files?  For three reasons: for flexibility, for
+security, and for traceability.
+
+Flexibility comes because it is easier to adapt to situations. If you
+have different software that needs different input data, then
+plain-text is what you need.
+
+Security: You control all your data because plain-text files are very
+readable. They don't need a certain software to read them.
+
+Tracebability because you can control your processes. If you have
+plain-text accounting, you can practicaly do anything you want.
+
+Ledger Command Line Interface.  What is it? Ledger is a powerful,
+double-entry, plain-text accounting system that is accessed from the
+Unix command-line.
+
+It is [very] flexible because you can have multiple currencies. You
+can even have imaginary currencies.  And you can have infinite account
+recursion, among many other things.
+
+It is auditable.  Since it is libre software (free as in freedom), you
+can read the code; you can modify the code; you can use it as you
+want.  You can use it for business.  You can sell it.  You can give it
+away.  You can distribute it [exact copies].  You an [also]
+redistribute it [modified versions].  You can do anything you want to
+[and with] it.
+
+It is stable.  It has a small footprint; yet it is very powerful.  The
+performance is great because it is so lightweight.
+
+The most important characteristic of most plain-text accounting
+software (among them Ledger Command Line Interface) is that you can
+have all the reports you want.  You create the reports you need.  If a
+report is not predefined, you can define it yourself [on the fly].
+And you can change the software also.  So it is very, very useful.
+
+There is a tool for Emacs that is called ledger-mode.  This tool lets
+you attain more performance. Emacs can be used for editing files.  If
+you want to edit [them] quickly, then you use Emacs.  ledger-mode is
+no exception [to this rule].  It is used as a template system.
+Transactions are entered very easily.  It is an all terrain vehicle.
+There is a very workflow.  If you are watching this presentation, you
+can see you can have a lot of reports, you can add transactions
+easily, you can copy them.  You have a lot of functionality in this
+software.
+
+Please use free software.  Your freedom is very important.  If you
+have to pay for it, please do it.  When one person uses free software,
+[that] frees other people too.  So it is very important for society
+that people use free software.
+
+I would like to thank Richard Stallman for starting the free software
+movement and [continuously to the day] making it known to users that
+software freedom is very important for all the other freedoms such as:
+freedom of speech, freedom of reunion.  All [human] rights in modern
+society must be exerted by way of technology.  Test it.  You can see
+what it does.  If you think it is difficult to use the keyboard, then
+you can add the commands as icons [or as menu items] and then just
+click on them.  I think that takes too long.  But if you are a newbie,
+you can learn to add the icons [and menu items] and use them until you
+learn the keyboard way to do it.  Go ahead and welcome to our Free
+[GNU] World.  I would be very glad to help out, if you need me.
+
+Bye! :-)
+
+quiliro@fsfla.org
+quiliro on Freenode IRC.
+(+593)876 31031
+```