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### 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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+[[!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)
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+[[!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
+```