[Slide] 3D print

(cherry picked from commit f92cf0c343)

.gitignore

@@ -1,4 +1,3 @@
 *.pdf
 *.epub
-Makefile
 *.xcf

Makefile

@@ -0,0 +1,23 @@
+help: ## Print the help message
+	$(info Make a single pdf by hitting the tab key a lot)
+	@awk 'BEGIN {FS = ":.*?## "} /^[0-9a-zA-Z._-]+:.*?## / {printf "\033[36m%s\033[0m : %s\n", $$1, $$2}' $(MAKEFILE_LIST) | \
+		sort | \
+		column -s ':' -t
+
+# Search should not include slides separated by '***', as those are for mdp, not pandoc.
+markdown != find slides/ -maxdepth 2 -type f -name "*.md" -exec grep -LF '***' '{}' ';'
+pdfs = $(patsubst %.md, %.pdf, $(markdown))
+handouts = $(patsubst %.md, %_handout.pdf, $(markdown))
+
+$(pdfs): %.pdf: %.md
+	pandoc -t beamer -V theme:Warsaw -i $< -o $@
+
+$(handouts): %_handout.pdf: %.md
+	pandoc -t beamer -V handout -V theme:Warsaw -i $< -o $@
+
+.PHONY: pdfs
+pdfs: $(pdfs) ## Generate all pdfs (try `make -j pdfs`)
+
+.PHONY: clean
+clean: ## Delete all pdfs
+	$(RM) $(pdfs)

README.md

@@ -1,5 +1,20 @@
 # Radionice
 
-First run ./configure to generate a Makefile using folders in this directory
+Usage: `make`
+
+## Dependecies:
+
+### For Debian:
+
+```bash
+sudo apt update
+sudo apt install pandoc
+sudo apt install tikzit
+```
+
+### For Arch:
+
+```bash
+pacman -Sy pandoc texlive-binextra texlive-pictures texlive-latexrecommended texlive-fontsrecommended
+```
 
-Then you can run make to generate pdf beamer slides

configure

@@ -1,13 +0,0 @@
-#!/usr/bin/bash
-FOLDERS=$(cd slides/ ; echo *)
-
-rm -f Makefile
-echo -n 'all:' >> Makefile
-for i in $FOLDERS ; do echo -n " $i.pdf" >> Makefile ; done
-echo "" >> Makefile
-
-for i in $FOLDERS ; do echo -e "$i.pdf:\n\tpandoc -t beamer -V theme:Warsaw -i slides/$i/$i.md -o slides/$i/$i.pdf\n" >> Makefile ; done
-
-echo -ne "clean:\n\trm -f" >> Makefile
-for i in $FOLDERS; do echo -n " slides/$i/$i.pdf" >> Makefile ; done
-echo "" >> Makefile

slides/3Dprint/3DPrint.md

@@ -0,0 +1,166 @@
+
+
+# 3D Printing
+
+***
+
+## Machine brands
+
+- Creality Ender
+- Prusa
+- Elagoo
+- Bamboo
+
+...and more
+
+Suggestion [Elagoo centauri](https://us.elegoo.com/products/centauri-carbon) - [40k](https://aldorshop.rs/proizvod/elegoo-centauri-carbon/)
+
+
+***
+
+## Main parts
+
+- Motors x,y,z
+- Buildplate (print bad)
+- Extruder
+- Bowden tube
+- Hotend
+- Nozzle
+- BL Touch
+
+***
+
+## Filamets
+
+- PLA and PLA+
+- PETG 
+- ASA/ABS
+- Resin
+
+...and other
+
+***
+
+## Filament - variations 
+
+ - Dual colors
+ - Shiny, glitter
+ - Transparent
+ - Glow in dark
+ - Elastic 
+ - Wood like
+
+***
+
+## Calibration and troubleshooting
+
+[guide](https://teachingtechyt.github.io/calibration.html)
+
+ - bed leveling
+ - line height
+ - extruder tensioning
+ - fillament temperature
+
+***
+
+## Modeling
+
+- Blender
+- FreeCAD
+
+... and a lot of propriatary tools
+
+***
+
+## Platforms and community
+
+- [Thingiverse](https://www.thingiverse.com)
+- [Printables](https://www.printables.com/)
+- [MyMiniFactory](https://www.myminifactory.com/)
+- [GrabCAD](https://grabcad.com/library)
+- [STL Finder](https://www.stlfinder.com/)
+
+... and much more
+
+***
+
+## Slicing
+
+- Prusa Slicer 
+- Cura 
+- Bamboo lab
+
+- Supports
+- Positioning
+
+
+***
+
+## Some techniques
+
+- Color change
+- Inserting magnets
+- Combining with other things
+    - screws
+    - marbles
+    - spinners
+    - electronics
+- Afterjobs
+    - sanding
+    - polishing
+    - coloring
+
+***
+
+## Monitoring
+
+- Builtin from vendor
+- [OctoPrint](https://octoprint.org/)
+    - OctoPi
+    - OctoPhone
+
+Note: don't expose, use home VPN, tailscale or similar
+***
+
+## Uses and projects
+
+- Fixing stuff
+- Upgrading stuff
+- Tools, skadis
+- Home appliances
+- Electronic devices (ESP, arduino, etc) 
+- Toys
+- Gifts
+
+***
+
+
+## Resources - Subreddits
+
+- r/FixMyPrint
+- r/functionalprint
+- r/3Dprinting
+- r/PrintedMinis
+- r/3dprinter
+- r/3DPrintTech
+
+***
+
+## Serbia
+
+- [DMZ forum post](https://forum.dmz.rs/t/3d-printing/417/4)
+- [Voxellab](https://voxellab.rs/)
+- [Radnja u staklencu](https://3dmarket.rs/3D/3d-stampaci/)
+
+***
+
+## Misc and upgrades
+
+- Printed parts / upgrades
+- Nozzle brush (automated cleaning)
+- Filament cleaner
+- Filament case and heataer
+- Silicone instead of springs for leveling
+- Sanding tools
+- Custom firmware upgrades
+

slides/DeGoogle/Slides.html

@@ -0,0 +1,320 @@
+<div style="margin: 0 auto; max-width: 960px">
+  <p><img src="de-Google-1-1.png" alt="image" width="100%" /></p>
+  <h2 id="why-bother">Why bother?</h2>
+  <ul>
+    <li>
+      <p>
+        Free and open source,
+        <a href="https://en.wikipedia.org/wiki/Android_(operating_system)">AOSP</a>, F-Droid,
+        <a href="https://en.wikipedia.org/wiki/MicroG">microG</a>,&#8230;
+      </p>
+    </li>
+    <li>
+      <p>Privacy, spyware, ad-blocking,&#8230;</p>
+    </li>
+    <li>
+      <p>Bloatware, performance, memory,&#8230;</p>
+    </li>
+    <li>
+      <p>Higher android version, permacomputing.</p>
+      <p><del>Anonimity</del></p>
+    </li>
+  </ul>
+  <h2 id="app-stores">App stores</h2>
+  <p>
+  <ul>
+    <li>
+      <a href="https://f-droid.org/en/packages/com.aurora.store/">Aurora store</a>
+      - anon
+    </li>
+    <li>
+      <a href="https://f-droid.org/">F-droid</a> - FOSS app store
+    </li>
+    <li>
+      <a href="https://f-droid.org/en/packages/com.machiav3lli.fdroid/">Neo store</a>
+    </li>
+    <li>
+      - update &#38; default repos (IzzyOnDroid)
+      <a href="https://github.com/ImranR98/Obtainium">Obtainium</a> - Directly
+    </li>
+    <li>
+      From the Source <a href="https://open-store.io/">Open store</a> - ubuntu
+      touch
+      <a href="https://en.wikipedia.org/wiki/Progressive_web_app">PWA</a>
+    </li>
+  </ul>
+  </p>
+  <p><code>Blacklisting same apps</code></p>
+  <h2 id="apps-and-alternatives">Apps and alternatives</h2>
+  <p>
+  <ul>
+    <li>
+      Playstore -&#62;
+      <a href="https://f-droid.org/en/packages/com.aurora.store/">Aurora Store</a>
+    </li>
+    <li>
+      Chrome -&#62; Firefox foxus &#47; Fennec
+      <a href="https://f-droid.org/en/packages/de.marmaro.krt.ffupdater/">FFUpdater</a>
+    </li>
+    <li>
+      Google search -&#62; <a href="https://docs.searxng.org/">SearXNG</a>,
+      <a href="https://github.com/hnhx/librex">LibreX</a>, DDG Maps -&#62;
+    </li>
+    <li>
+      <a href="https://f-droid.org/packages/app.organicmaps/">Organic maps</a> or
+    </li>
+    <li>
+      <a href="https://osmand.net/">OsmAnd</a> Youtube -&#62;
+    </li>
+    <li>
+      <a href="https://newpipe.net/">NewPipe</a>,
+    </li>
+    <li>
+      <a href="https://freetubeapp.io/">FreeTube</a> Drive -&#62;
+    </li>
+    <li>
+      <a href="https://syncthing.net/">Syncthing</a>,
+    </li>
+    <li>
+      <a href="https://f-droid.org/packages/io.github.x0b.rcx/">RCX</a>
+    </li>
+    <li>
+
+      Office
+      -&#62;
+      <a href="https://f-droid.org/en/packages/at.tomtasche.reader/">LibreOffice &#38; OpenOffice</a>
+    </li>
+    <li>
+      Mail -&#62;
+      <a href="https://f-droid.org/packages/com.fsck.k9/">K-9 Mail</a> &#47;
+    </li>
+    <li>
+      <a href="https://f-droid.org/packages/eu.faircode.email/">Fairmail</a>
+    </li>
+    <li>
+      Music&#47;Video -&#62;
+      <a href="https://f-droid.org/packages/org.videolan.vlc/">VLC</a>
+    </li>
+  </ul>
+  </p>
+  <p>
+    Reddit -&#62;
+    <a href="https://f-droid.org/en/packages/geddit.buzl.uk/">Geddit</a> (no API
+    directly) Wikipedia -&#62;
+    <a href="https://f-droid.org/packages/org.greatfire.wikiunblocked.fdroid/">Wiki Unblocked</a>
+  </p>
+  <p>
+    <a href="https://f-droid.org/packages/org.jak_linux.dns66/">DNS66</a> -
+    DNS-Based Host Blocking (ad block)
+    <a href="https://f-droid.org/packages/app.fedilab.nitterizeme/">UntrackMe</a>
+    - cleaning urls and redirecting like LibRedirect Extension
+  </p>
+  <p>
+    -&#62;
+    <strong><a href="https://github.com/offa/android-foss">Full FOSS app list</a></strong>
+  </p>
+  <h2 id="operating-systems-custom-roms">Operating systems (Custom ROMs)</h2>
+  <ul>
+    <li>
+      <p><a href="https://wiki.lineageos.org/devices/">LineageOS</a></p>
+    </li>
+    <li>
+      <p><a href="https://lineage.microg.org/">LineageOS for microG</a></p>
+    </li>
+    <li>
+      <p>
+        <a href="https://divestos.org/pages/devices">DivestOS</a> -&#62; soft
+        fork on LinageOS
+      </p>
+    </li>
+    <li>
+      <p>
+        <a href="https://crdroid.net/downloads">crDroid</a> -&#62; customized
+        fork on LinageOS
+      </p>
+    </li>
+    <li>
+      <p><a href="https://www.droidontime.com/devices">DotOS</a></p>
+    </li>
+    <li>
+      <p><a href="https://paranoidandroid.co/">Paranoid android</a></p>
+    </li>
+    <li>
+      <p><a href="https://projectelixiros.com/download">ProjectElixirOS</a></p>
+    </li>
+    <li>
+      <p><a href="https://evolution-x.org/download">evolutionX</a></p>
+    </li>
+    <li>
+      <p>
+        <a href="https://doc.e.foundation/devices">&#47;e&#47;os&#47;</a> -&#62;
+        partialy FOSS
+      </p>
+    </li>
+    <li>
+      <p>
+        <a href="https://grapheneos.org/releases">GrapheneOS</a> -&#62; only for
+        pixel phones
+      </p>
+    </li>
+    <li>
+      <p>
+        <a href="https://calyxos.org/docs/guide/device-support/">Calyxos</a>
+        -&#62; pixels &#38; fairphone
+      </p>
+    </li>
+    <li>
+      <p>
+        <a href="https://get.pixelexperience.org/">PixelExp</a> -&#62; OS like
+        google pixel
+      </p>
+    </li>
+  </ul>
+  <h4 id="linux-phone-os">Linux phone OS</h4>
+  <ul>
+    <li>
+      <a href="https://postmarketos.org/download/">PostmarketOS</a> -
+      <a href="https://wiki.postmarketos.org/wiki/Devices">wiki devices</a>
+    </li>
+    <li><a href="https://devices.droidian.org/">Droidian</a></li>
+    <li><a href="https://mobian-project.org/">Mobian</a></li>
+    <li><a href="https://devices.ubuntu-touch.io/">Ubuntu touch </a></li>
+    <li><a href="https://www.kali.org/docs/nethunter/">Kali Nethunter</a></li>
+  </ul>
+  <p>
+    -&#62; <a href="https://linuxstans.com/linux-phone/">Linux phones list</a>
+  </p>
+  <h3 id="prioritize-for">Prioritize for</h3>
+  <ul>
+    <li>Unlockable</li>
+    <li>Device is supported (TWRP and OS)</li>
+    <li>Supports microG</li>
+    <li>Last updated</li>
+    <li>Highest android version</li>
+    <li>Bootloader relocking</li>
+  </ul>
+  <p>!!! ATENTION !!! Device can be bricked!</p>
+  <ul>
+    <li>Check if unlockable, has TWRP and OS version listed</li>
+    <li>Backup your data</li>
+    <li>Full battery and work while charging</li>
+    <li>
+      Enable <code>Allow OEM unlocking</code> under
+      <code>Developer options</code> in Settings if available
+    </li>
+    <li>Check many sources and people&#8217;s experience</li>
+    <li>Tripple check everything</li>
+    <li>
+      <a href="https://divestos.org/pages/bootloader">Unlock bootloader</a>
+      (data wipe)
+    </li>
+  </ul>
+  <h4 id="custom-recovery-software">Custom recovery software</h4>
+  <ul>
+    <li>
+      <a href="https://twrp.me/Devices/">TWRP</a>
+      <a href="https://en.wikipedia.org/wiki/TWRP_(software)">wiki</a>
+    </li>
+    <li><a href="https://orangefox.download/device">Orange fox</a></li>
+  </ul>
+  <p><code>Recovery boot shortcut != fastboot shortcut</code></p>
+  <table>
+    <thead>
+      <tr>
+        <th>Name</th>
+        <th>Model</th>
+        <th>SoC</th>
+        <th><strong>Codename</strong></th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr>
+        <td>Samsung Galaxy S4</td>
+        <td>GT-I9505</td>
+        <td>Snapdragon</td>
+        <td><strong>jfltexx</strong></td>
+      </tr>
+      <tr>
+        <td>Samsung Galaxy S7</td>
+        <td>SM-G935F</td>
+        <td>Exynos</td>
+        <td><strong>hero2lte</strong></td>
+      </tr>
+    </tbody>
+  </table>
+  <h2 id="my-exp">My exp</h2>
+  <p>
+    Samsung -&#62; <a href="https://odinflashtool.com/">Odin</a>-
+    <a href="https://odinflashtool.com/downloads/download-jodin3/">jOdin</a>,
+    <a href="https://glassechidna.com.au/heimdall/">heimdall</a> -&#62; s4, s7
+    &#38; s8 Xiomi -&#62; SIM + xiomi acc, win app -&#62; 7d approval (insta
+    wipe) -&#62; Redmi Note 7 &#38; 8T LG -&#62;
+    <a href="https://developer.lge.com/resource/mobile/RetrieveBootloader.dev">Not supported anymore</a>,
+    <a href="https://www.xda-developers.com/lg-exits-smartphone-business/">Exiting the smartphone business</a>
+    -&#62; G6
+  </p>
+  <p>LinageOS, crDroidOS, divestOS, dotOS, &#47;e&#47;OS, pixelExpirance</p>
+  <p>Flash from microSD</p>
+  <h2 id="usefull-links">Usefull links</h2>
+  <h4 id="reddit-subs">Reddit subs</h4>
+  <ul>
+    <li><a href="https://www.reddit.com/r/degoogle/">DeGoogle</a></li>
+    <li><a href="https://www.reddit.com/r/fossdroid">FossDroid</a></li>
+    <li>
+      <a href="https://www.reddit.com/r/LineageOS">LinageOS</a>&#47;
+      <a href="https://www.reddit.com/r/DivestOS/">DivestOS</a>
+    </li>
+    <li><a href="https://www.reddit.com/r/tuxphones">Tuxphones</a></li>
+  </ul>
+  <h4 id="phones">Phones</h4>
+  <ul>
+    <li><a href="https://www.pine64.org/pinephone/">Pinephone</a></li>
+    <li><a href="https://puri.sm/products/librem-5/">Librem 5</a></li>
+    <li><a href="https://shop.fairphone.com/">Fairphone</a></li>
+    <li><a href="https://store.fxtec.com/">F(x)tec</a></li>
+    <li><a href="https://volla.online/en/index.html">Volla Phone</a></li>
+    <li><a href="https://www.shiftphones.com/en/">Shiftphone</a></li>
+  </ul>
+  <h4 id="guides">Guides</h4>
+  <ul>
+    <li>
+      <a href="https://xdaforums.com/all-forums-by-manufacturer">XDA Forums</a>
+    </li>
+    <li>
+      <a href="https://www.xda-developers.com/install-adb-windows-macos-linux/">adb-tools</a>
+    </li>
+    <li>
+      <a href="https://www.reddit.com/r/fossdroid/comments/o1gmb8/the_im_new_to_fdroid_starter_pack/">New to
+        FossDroid</a>
+    </li>
+    <li>
+      <a href="https://gofoss.net/intro-free-your-phone/">Gofoss free your phone</a>
+    </li>
+  </ul>
+  <h4 id="check-os-and-device">Check OS and device</h4>
+  <ul>
+    <li>
+      <a href="https://en.wikipedia.org/wiki/List_of_custom_Android_distributions">List of custom Android
+        distributions</a>
+    </li>
+    <li>
+      <a href="https://linuxstans.com/linux-phone/">Linux Phone: All Options Compared</a>
+    </li>
+    <li><a href="https://many.tuxphones.com/">Can My Phone Run Linux?</a></li>
+  </ul>
+  <h4 id="other">Other</h4>
+  <ul>
+    <li>
+      <a href="https://github.com/Genymobile/scrcpy">Screen copy (scrcpy)</a>
+    </li>
+    <li>
+      <a href="https://en.wikipedia.org/wiki/Open-source_hardware">Open source hardware</a>
+    </li>
+    <li>
+      <a href="https://www.phoronix.com/news/KDE-Plasma-Mobile-6-Porting">KDE Plasma Mobile 6 Porting</a>
+    </li>
+    <li>
+      <a href="https://blogs.gnome.org/shell-dev/2022/09/09/gnome-shell-on-mobile-an-update/">Gnome sneak peak 2022</a>
+    </li>
+  </ul>
+</div>

slides/DeGoogle/unlockBootloader.md

@@ -0,0 +1,205 @@
+
+-> # DeGoogle your phone
+
+---
+
+## Why bother?
+
+- Privacy, spyware, ad-blocking,...
+- Bloatware, performance, memory,...
+- Higher android version 
+- Permacomputing, reusing old devices
+- Free and open source 
+- AOSP Android Open Source Project
+- F-Droid 
+- microG
+
+-> *Dont expect anonimity*
+
+---
+
+## Obtaining apps
+
+- Aurora store
+- F-droid
+- IzzyOnDroid repo
+- Neo store
+- Obtainium
+- PWA
+
+`Blacklisting apps` on different stores, 
+avoiding adds/payments, etc.
+
+---
+
+## Apps and alternatives 
+
+Playstore -> *Aurora Store*
+Chrome -> *Fennec*
+Google search -> *SearXNG LibreX, DDG*
+Maps -> *Organic maps, OsmAnd*
+Youtube -> *NewPipe, FreeTube*
+Drive -> *Syncthing, Nextcloud*
+Office -> *LibreOffice & OpenOffice*
+Mail -> *Thunderbird*
+Music/Video player -> *VLC*
+
+DNS66, RethingDNS - DNS-Based Host Blocking 
+UntrackMe - url clean, redirecs (LibRedirect) 
+
+---
+
+-> ## Operating system (_Custom ROMs_)
+
+_ROM (Read-Only Memory):_
+
+Originally, the term ROM referred 
+to a type of computer memory where 
+**data could only be read, not written or modified.**
+In the context of mobile devices, 
+"ROM" has come to refer to the firmware or operating system 
+software that is installed on the device. 
+This includes the core Android operating system along with 
+any additional software and customizations 
+made by the device manufacturer.
+
+---
+
+## Distros
+
+- *LineageOS*
+- *LineageOS with microG*
+- *DivestOS* -> soft fork on LinageOS
+- *crDroid* -> customized fork on LinageOS
+- many more
+
+- */e/os/* -> partialy FOSS
+- *GrapheneOS* -> only for pixel phones
+- *Calyxos* -> pixels & fairphone
+- *PixelExp* -> OS like google pixel
+
+---
+
+## Linux phone OS 
+
+- PostmarketOS 
+- Droidian 
+- Mobian
+- Ubuntu touch
+- Kali Nethunter
+
+---
+
+## Prioritize for
+
+- Unlockable
+- Device is supported (TWRP and CustomROM)
+- Supports microG
+- Last updated
+- Highest android version
+- Bootloader relocking
+
+---
+
+## Prepare
+
+- Check if unlockable
+- Backup your data
+- Full battery and work while charging
+- Use data cable
+- Enable *Allow OEM unlocking* under *Developer options*
+- Tripple check everything
+- Unlock bootloader
+
+->  `!!!ATENTION - Device can be bricked!!!`
+
+---
+
+## Unlocking bootloader
+
+
+- install adb tools 
+
+*Recovery mode*
+*Fastboot mode*
+
+Different combo keys or commands
+
+
+| Name      | Model     | SoC        | **Codename**  |
+| --------- | --------- | ---------- | --------- |
+| Galaxy S4 | GT-I9505  | Snapdragon | **jfltexx**   |
+| Galaxy S7 | SM-G935F  | Exynos     | **hero2lte**  |
+
+---
+
+## Some commands
+
+```sh
+adb devices
+fastboot devices
+
+adb reboot bootloader
+adb reboot recovery
+
+adb push rom.img /sdcard/ 
+adb sideload rom.img 
+
+adb shell 
+
+fastboot boot recovery.img
+fastboot flash recovery recovery.img
+fastboot reboot bootloader
+fastboot reboot recovery
+
+heimdall flash --RECOVERY twrp.img --no-reboot 
+
+```
+
+---
+
+## Flashing recovery software
+
+- TWRP
+- Orange fox
+
+Flash from microSD
+ADB push
+ADB sideload
+
+---
+
+## Installing Custom ROM
+
+- Subforum for the device on XDA forums
+- microSD Flash or ADB Sidelaod
+
+---
+
+## Variations 
+
+*Samsung* -> many options, heimdall (FOSS, linux)
+*Xiomi* -> SIM + acc, win -> 7d approval (insta wipe) 
+*LG* -> Not supported anymore
+*Huawei* -> locked
+
+Some are unlocked by default (Fairphone, Pixel)
+
+---
+
+## Reddit subs
+
+- /r/degoogle
+- /r/fossdroid
+- /r/LineageOS
+- /r/tuxphones
+
+---
+
+## Links
+
+- [Screen copy (scrcpy)](https://github.com/Genymobile/scrcpy)
+- [Heimdall](https://github.com/Benjamin-Dobell/Heimdall)
+- [TWRP](https://www.twrp.me/)
+
+

slides/algebragrupe/algebragrupe.md

@@ -0,0 +1,65 @@
+---
+title:
+- Algebra (Grupe)
+
+theme:
+- Warsaw
+colortheme:
+- orchid
+---
+
+# Uvod
+- Skupovi
+    - Celi brojevi (beskonacni)
+    - Ostatci pre deljenju (konacne)
+- Operacije
+    - mnozenje (binarna)
+    - negacija (unarna)
+
+# Grupe
+- Rezlutat ostaje unutar skupa
+- Neutral
+- Inverz
+- Asocijativnost
+- Abelove grupe (komutativnost)
+- Ciklicne grupe (ostatak pri deljenju)
+
+# Podgrupe
+- Celi/Racionalni brojevi
+- Red grupe
+- Red podgrupe deli red grupe
+
+# Kriptografija
+- Skup poruka m odredjene velicine
+- Operacija sifrovanja/potpisivanja $\oplus$
+    - jednosmerna (kao i hash funkcije)
+- Neutral (e)
+- Inverz kljuceva (k1, k2)
+    - $k1 \oplus k2 \equiv e$
+- Sifrovanje/Potpisivanje ( $c \equiv m \oplus k1$ )
+- Desifovanje/Provera ( $c \oplus k2 \equiv m$ )
+- Asocijativnost
+    - $c \oplus k2 \equiv (m \oplus k1) \oplus k2 \equiv m \oplus (k1 \oplus k2)$
+    - $m \oplus (e) \equiv m$
+
+# Kljucevi
+- Jedan kljuc (simetricna)
+    - $k1 \equiv k2$
+    - $1 \oplus 1 \equiv 0 \mod 2$ (komplement)
+- Dva kljuca (asimetricna)
+    - $2+3 \equiv 0 \mod 5$
+
+# Razmena kljuceva
+![Diffie–Hellman](slides/rsa/dhke.png)
+
+# Razmena kljuceva
+- Diffie–Hellman (DH)
+    - parametri (g,n,...)
+    - Abelova grupa (komutativnost)
+    - $g \oplus a \oplus b \equiv g \oplus b \oplus a$
+    - $(g \oplus a) \oplus b \equiv (g \oplus b) \oplus a$
+    - $A \oplus b \equiv B \oplus a$
+
+# Sifrovanje/Potpisivanje
+- Direktno sifrovanje (RSA)
+- DH + simetcina = asimetricna (EC)

slides/ansible/ansible.md

@@ -0,0 +1,226 @@
+---
+title: Ansible
+author: Malin
+theme: Warsaw
+colortheme: orchid
+---
+
+# First: Idempotence
+
+## My Setup Script
+
+
+```sh
+# Place locale info
+echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
+/etc/default/libc-locales
+xbps-reconfigure -fy glibc-locales
+
+# Start cron service
+xbps-install -y crontab
+ln -s /etc/sv/cronie /var/service
+sv start crontab
+
+#  Add default dot files
+git clone https://gitlab.com/andonome/mkdots.git /etc/skel/.dots
+
+useradd -m ghost
+usermod -aG wheel
+
+```
+
+***
+
+> Error: no package 'cron tab'
+
+***
+
+```sh
+# Place locale info
+echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
+/etc/default/libc-locales
+xbps-reconfigure -fy glibc-locales
+
+# Start cron service
+xbps-install -y cronie
+ln -s /etc/sv/cronie /var/service
+sv start cronie
+
+#  Add default dot files
+git clone https://gitlab.com/andonome/mkdots.git /etc/skel/.dots
+
+useradd -m ghost
+usermod -aG wheel
+
+```
+
+> ...loading locales
+
+***
+
+> Error: No command 'git'
+> Error: user already exists
+
+***
+
+```sh
+# Place locale info
+echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
+/etc/default/libc-locales
+xbps-reconfigure -fy glibc-locales
+
+# Start cron service
+xbps-install -y cronie git
+ln -s /etc/sv/cronie /var/service
+sv start cronie
+
+#  Add default dot files
+git clone https://gitlab.com/andonome/mkdots.git /etc/skel/.dots
+
+useradd -m ghost
+usermod -G wheel
+
+```
+
+***
+
+> `$ cat /etc/locale.conf`
+
+```sh
+LC_COLLATE=C
+LANG=en_GB.UTF-8
+LANG=en_GB.UTF-8
+LANG=en_GB.UTF-8
+LANG=en_GB.UTF-8
+LANG=en_GB.UTF-8
+LANG=en_GB.UTF-8
+```
+
+> `$ ???`
+
+***
+
+
+```sh
+grep en_GB /etc/locale.conf || \
+    echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
+
+```
+
+***
+
+# So Ansible...
+
+
+```sh
+ansible --module-name=ping localhost
+ansible -m package -a 'upgrade=yes' localhost
+```
+
+## Lines in Files
+
+```sh
+ansible -m lineinfile -a 'line=test create=yes path=/tmp/x' localhost
+ansible -m say -a 'voice=en_GB msg="Testing"' localhost
+ansible -m say -a 'voice=en_GB msg="Testing"' localhost
+```
+
+***
+
+# More Hosts!
+
+Hark at the hosts in `~/.ssh/config`:
+
+```sh
+Host soft
+    HostName soft.dmz.rs
+    Port 2222
+	User ghost
+	IdentityFile ~/.ssh/id_rsa
+Host krov
+	HostName krov.dmz.rs
+	User malin
+Host kralizec
+	HostName dmz.rs
+	User root
+Host laka
+	HostName 192.168.0.50
+	IdentityFile ~/.ssh/id_rsa
+```
+
+***
+
+## Hosts in toml
+
+
+```toml
+[webby]
+nginx12
+
+[webby:vars]
+user=alice
+```
+
+This is easy to read, but breaks standards.
+
+***
+
+`ansible-play -i hosts.toml playbooks/mmcli`
+
+***
+
+Better to stick with standards, even if you can't read it!
+
+***
+
+Very yaml:
+
+```yml
+all:
+  vars:
+    ansible_python_interpreter: /usr/bin/python3.13
+    cow_selection: random
+    username: ghost
+    locale: Europe/Belgrade
+    libc_locale: en_GB.UTF-8 UTF-8
+  children:
+    arch:
+      children:
+        archyay:
+          hosts:
+            ratking:
+            archkube:
+            nimbus:
+    void:
+      hosts:
+        hex:
+    debian:
+      vars:
+        ansible_python_interpreter: /usr/bin/python3.12
+      hosts:
+        laka:
+        proxmox:
+
+```
+
+***
+
+`ansible-play -i hosts.yml playbooks/mmcli`
+
+***
+
+# What it Does
+
+- Installs packages
+- Copies configs *to* host
+- Fetches files *from* host
+    * Backup ssl certs
+    * Backup ssh identify keys
+
+***
+
+# Check the Repository Here!
+
+`[ $git_repo_address ]`
+
+

slides/ansible/examples/bind.yml

@@ -0,0 +1,22 @@
+---
+- name: Compile BIND
+  hosts: hex
+  become: false
+  environment:
+    PATH: '{{ ansible_env.PATH }}'
+
+  tasks:
+    - name: Git pull BIND
+      ansible.builtin.git:
+        repo: https://gitlab.com/bindrpg/core.git
+        dest: "{{ ansible_user_dir }}/core"
+        clone: true
+        verify_commit: true
+        version: master
+
+
+    - name: Make BIND
+      community.general.make:
+        chdir: "{{ ansible_user_dir }}/core"
+        jobs: 3
+        target: all

slides/ansible/examples/mmcli.yml

@@ -0,0 +1,27 @@
+---
+- name: Install Mermaid ASCII
+  hosts: laka
+  become: true
+
+  tasks:
+    - name: Install deps
+      ansible.builtin.package:
+        name:
+          - git
+          - golang
+          - make
+
+    - name: Ensure local src dir exists
+      ansible.builtin.file:
+        path: /usr/local/src/
+        state: directory
+        mode: '0755'
+    - name: Clone mermaid-ascii
+      ansible.builtin.git:
+        repo: https://github.com/AlexanderGrooff/mermaid-ascii.git
+        dest: /usr/local/src/mermaid-ascii/
+        update: yes
+    - name: Install mermaid
+      community.general.make:
+        chdir: /usr/local/src/mermaid-ascii/
+        target: install

slides/ansible/examples/tlmgr.yml

@@ -0,0 +1,10 @@
+---
+- name: Install tlmgr
+  hosts: june
+  become: true
+
+  tasks:
+    - name: Install texlive
+      ansible.builtin.script: mintex.sh
+      args:
+        creates: /usr/local/bin/tlmgr

slides/ansible/examples/transmission.yml

@@ -0,0 +1,18 @@
+---
+- name: Make crontab
+  hosts: june
+  become: true
+
+  tasks:
+    - name: Late-night transmission start
+      ansible.builtin.cron:
+        name: start transmission
+        minute: 0
+        hour: 3
+        job: /usr/bin/systemctl start transmission
+    - name: Late-night transmission end
+      ansible.builtin.cron:
+        name: stop transmission
+        minute: 0
+        hour: 6
+        job: /usr/bin/systemctl stop transmission

slides/ansible/examples/tspreed.yml

@@ -0,0 +1,24 @@
+---
+- name: Install tspreed
+  hosts: october
+  become: true
+
+  tasks:
+    - name: Ensure local src dir exists
+      ansible.builtin.file:
+        path: /usr/local/src/
+        state: directory
+        mode: '0755'
+    - name: Install make
+      ansible.builtin.package:
+        name: make
+        state: present
+    - name: Clone tspreed
+      ansible.builtin.git:
+        repo: https://github.com/n-ivkovic/tspreed.git
+        dest: /usr/local/src/tspreed
+        update: yes
+    - name: Install tspreed
+      community.general.make:
+        chdir: /usr/local/src/tspreed
+        target: install

slides/ekonomija/ekonomija.md

@@ -10,13 +10,21 @@ colortheme:
 
 # Uvod
 - Šta je ekonomija?
+    - istorija
+    - trampa
+    - kovanice i papirni novac
+    - "slobodna" trgovina
 	- raspodela resursa
-	- efikasnost
+	- efikasnost i evektivnost
+
 
 # Uvod
 - Šta je novac?
+    - banke
+    - ponuda i traznja
 	- moć odlučivanja u raspodeli resursa
 	- likvidnost
+    - bruto domaci proizvod (BDP eng GDP)
 
 # Štednja
 - Štednja
@@ -47,6 +55,7 @@ colortheme:
 - Brokeri
 	- domaći
 	- strani
+    - wall street
 
 # Kripto
 - Novac
@@ -62,10 +71,33 @@ colortheme:
 	- iluzija sposobnosti
 	- zakoni
 
+# Uspesi sistema
+- Uspesi sistema
+ - brz napredak u poljima interesovanja (profita)
+ - masovna proizvodnja
+ - poslovi i obucavanje naroda
+ - 
+
+# Neuspesi i kritika sistema
+- Kritika
+   - planirano zastarevanje
+   - ciklicna potrosnja
+   - ekoloska katastrofa
+   - automatizacija
+   - besmisleni poslovi
+   - robovanje profitu
+   - kompetitivnost i ratovi
+   - sve na prodaju
+   - kriza u ciklusima
+   - najbogatijih 1%
+   - maltuzianizm
+
+
 # Kako da se obogatim?
 - Kako zaraditi?
-	- roditi se bogat
+	- nasledstvo
-	- krasti
 	- rad i štednja
+    - investicije
+    - kradja
 	- sreća
 

slides/extended_minds/extended_mind.md

@@ -1,62 +0,0 @@
----
-title:
-- The Extended Mind and Licensing
-author:
-- Malin
-
-theme:
-- Warsaw
-colortheme:
-- orchid
----
-
-# History
-
-- Started with Clark and Chalmers
-- [Chalmers at Ted](https://yt.artemislena.eu/watch?v=ksasPjrYFTg)
-
-## Cyborg Manifesto
-
-Or maybe Donna Haraway?
-
-# Original Extended Minds
-
-- Notebooks
-- Counting on fingers
-- Fil-o-fax
-
-# Electronic Extended Minds
-
-- Phones
-- Computers
-- Google?
-- Note-apps?
-
-# Intuition Pumps
-
-- Proprioception and teeth
-- The feeling of loss over theft
-- Second brains
-
-# Requirements
-
-- 'to-hand'
-- Repetition
-- Locus
-
-> Do you know where they live?
-
-# Counter Requirements
-
-> Skin and bone
-
-Does *Ghost in the Shell* count?
-
-# The Point and the Future
-
-![robocop](robocop_valuse.png)
-
-# End Notes
-
-> Can you code in the sand?
-

slides/extended_minds/extended_minds.md

@@ -54,7 +54,7 @@ Does *Ghost in the Shell* count?
 
 # The Point and the Future
 
-![robocop](robocop_valuse.png)
+![robocop](slides/extended_minds/robocop_values.png)
 
 # End Notes
 

slides/joyous_bash/joyous_bash.md

@@ -0,0 +1,243 @@
+# Shut Up!
+
+
+
+```sh
+echo blacklist pcspkr >  /etc/modprobe.d/nobeep.conf
+```
+
+---
+
+# Standard Visuals
+
+- `cbonsai`
+- `asciiquarium`
+- `top`
+    * `ZH4W`
+
+## Another Monday!
+
+- `cal --reform julian`
+
+## Weather
+
+```sh
+curl wttr.in
+curl -s wttr.in/
+curl wttr.in/Moon
+```
+
+# `ls`
+
+`ls -X`
+
+---
+
+# vim
+
+- blog!
+- seriously, just write
+
+---
+
+# `watch`
+
+## Watch Differences
+
+- `watch -d stat "$file"`
+- `watch -d ip a`
+
+## With Makefiles
+
+```sh
+watch --chgexit ping -c 1 dmz.rs && sleep 3 && unison -batch pir
+```
+
+## Check Progress
+
+```sh
+watch 'ls **/*.pdf | column'
+```
+
+---
+
+# Watch Shell Scripts
+
+
+```sh
+watch -e ./script.sh
+```
+
+---
+
+# Slow Down
+
+```sh
+function slow(){
+	ff=/tmp/bashpipe_$(date +%s)
+	mkfifo $ff 2>/dev/null
+	( cat $ff | perl -We 'use Time::HiRes;$|++;while(read(STDIN,$c,1)){Time::HiRes::usleep(15000);print $c;}' )& exec &> $ff
+}
+
+```
+
+## Safety?
+
+- no
+
+## `htop`?
+
+- no
+
+## `speedtest`?
+
+- **YES**
+
+```
+
+---
+
+# Notes
+
+```sh
+alias no='$EDITOR .no.md'
+function n(){
+	[ -z "$1" ] && cat .no.md || echo $@ >> .no.md
+}
+
+```
+
+---
+
+# URL  Decoding
+
+
+```bash
+urldecode(){ : "${*//+/ }"; echo -e "${_//%/\\x}"; }
+```
+
+---
+
+# Send Text
+
+
+```sh
+function sendtext(){
+	[ -f "$1" ] && \
+	cat "$1" | nc termbin.com 9999 || \
+	echo "$($1)" | nc termbin.com 9999
+}
+```
+
+---
+
+# Readline
+
+
+Put this in `.inputrc`.
+
+```text
+set editing-mode vi
+set keymap vi
+```
+
+---
+
+# More Readline vi
+
+
+```text
+set editing-mode vi
+set show-mode-in-prompt on
+set vi-ins-mode-string "  "
+set vi-cmd-mode-string "W "
+set keymap vi
+```
+
+---
+
+# More Readline
+
+```text
+
+set match-hidden-files off
+set show-all-if-ambiguous on
+set show-all-if-unmodified on
+set colored-stats on
+
+"\C- ": shell-expand-line
+"\C-x": glob-expand-word
+Control-g: "g\n"
+Control-y: "| ccze\n"
+Control-o: "\C-u lfcd\n\C-u"
+Control-l: "\C-u clear -x && ls\n"
+```
+
+---
+
+# Synchronization
+
+## Syncthing
+
+- 'Just works'
+
+## Unison
+
+- Fuck haskell
+- But actually it's good
+
+
+---
+
+# `column`
+
+```sh
+column -ts: -H PW,GID,shell -N User,PW,UID,GID,Description,Home,shell /etc/passwd
+```
+
+##
+
+```sh
+column -J -ts: -H PW,GID,shell -N User,PW,UID,GID,Description,Home,shell /etc/passwd | jq -r .table.[].user
+```
+
+---
+
+# Aliases
+
+## b
+
+```sh
+b () 
+{ 
+    eval "cd $(for d in $(seq 1 $1);
+do
+    printf ../;
+done)"
+}
+
+```
+
+---
+
+# `eval`
+
+- Don't
+
+---
+
+# Clear Downloads
+
+```sh
+rm -rf ~/Downloads/*
+echo "tmpfs $HOME/Downloads tmpfs defaults,size=1G 0 0" | sudo tee -a /etc/fstab
+sudo systemctl daemon-reload # Only for systemd
+sudo mount -a
+mount | tail -1
+```
+
+# The Best: `yes`
+
+- `yes`
+- `yes no`
+

slides/kombucha/gutMicrobiome.md

@@ -0,0 +1,74 @@
+
+
+
+
+
+- Vaccines and modern medicine
+- Antibiotic apocalipse
+- Gut microbiome => immunity / mental health
+- Transfer experiment
+- PREbiotic / PRObiotic
+- Fermented procucts (not pasteurization)
+	- kombucha
+	- kefir
+	- kimchi
+	- picked food
+	- kvas
+
+
+
+
+
+
+
+
+
+
+## Komucha
+
+
+![[scoby.jpg | 350]]
+*Symbiotic culture of bacteria and yeast (SCOBY)*
+
+
+
+![[kombucha-jar.jpg | 350]]
+*First fermentation*
+
+#### Recepie:
+
+- 70g/l sugar
+- green/black tea (not teabags)
+- room temp
+- 14 days -> 1st ferment
+- 3-10 days -> 2nd ferment with fruit
+
+#### Info
+
+- r/komucha
+- Stores with healty foods selling commercially
+- Many types of acids - low ph - microbes thrive
+- 0.5% alcohol (USA regulations)
+
+
+
+
+
+
+Don't toss those pineapple skins! Turn them into a delicious and refreshing Mexican probiotic drink called tepache. It's a great alternative to soda or kombucha and perfect for staying cool in the summer heat. 
+
+Tepache Recipe:
+
+Add the skins of 1 pineapple to a 2L jar.
+
+Mix in ½ cup sugar or brown sugar (piloncillo is typically used but I couldn't find it), 1 inch of ginger, and 1 cinnamon stick.
+
+Fill to the top with water.
+
+Let it ferment for 5 days.
+
+Bottle it up for a second fermentation for 2 days. Then, chill in the fridge before serving.
+
+Enjoy this bubbly, homemade treat! 
+
+IS you would like the link a step by step YouTube video comment "YT Tepache"

slides/makefiles/PS/general_make.md

@@ -0,0 +1,119 @@
+# Generalizing Makefiles for All Occasions
+
+- Rules are bad,
+- standards are good,
+- habits are better.
+
+***
+
+# General Standards
+
+- `make help`
+- `make check`
+- `sudo make install`
+
+**NB:** we separate `make` from `make install` so that the files are not build with the user `root` as the owner.
+
+***
+
+# Service Standards
+
+- `make backup.tgz`
+- `make install`
+
+## Service Backups in Two Files
+
+- `configs`: configuration files, all tracked in git.
+- `store`: passwords and binary files, not tracked in git.
+
+## New Abilities Unlocked
+
+- Open Access Administration.
+- Sharing admin configs with hacker spaces.
+
+***
+
+## BEHOLD: The Everything Makefile
+
+***
+
+```make
+CONFIGS = $(patsubst /%,%,$(shell cat configs))
+STORE = $(patsubst /%,%,$(shell cat store))
+CP = mkdir -p $(dir $@) && cp -a
+IGNORE_FILE = $(shell test -d .git/info && echo .git/info/exclude || echo .gitignore)
+GIT_COMMIT = git commit -m"add $@" --no-gpg-sign --no-signoff
+SELECTOR != command -v sk || command -v fzy || command -f fzf
+.PHONY: all
+all: init backup.tgz $(IGNORE_FILE)
+backup.tgz: $(CONFIGS) $(STORE)
+	tar czf $@ $^
+$(IGNORE_FILE): store
+	echo $(STORE) backup.tgz | tr ' ' '\n' > $@
+.PHONY: init
+init: configs store
+configs store:
+	while con="$$(find /var /etc/ /sys/ -maxdepth 2 -mindepth 1 -type f 2>/dev/null  | $(SELECTOR) -p "Select files for $@\nPress Ctrl+d once done")"; do \
+	echo "$$con"; \
+	done > $@
+$(CONFIGS): %: /%
+	$(CP) $< $@
+	git add $@
+	$(GIT_COMMIT)
+	$(info made git commit for $@)
+$(STORE): %: /%
+	$(CP) $< $@
+clean:
+	$(RM) -r $(CONFIGS) $(STORE) backup.tgz
+```
+
+***
+
+## Example: Soft Serve Makefile
+
+<br>
+The `configs` file:
+
+```
+/etc/soft-serve.conf
+/var/lib/soft-serve/data/config.yaml
+/var/lib/soft-serve/data/file
+/etc/nginx/sites-enabled/soft.dmz.rs
+/etc/nginx/sites-available/soft.dmz.rs
+```
+
+<br>
+The `store` file:
+
+```
+/var/lib/soft-serve/data/lfs
+/var/lib/soft-serve/data/repo
+/var/lib/soft-serve/data/soft
+/etc/letsencrypt/archive/soft
+/etc/letsencrypt/live/soft.dm
+/var/lib/soft-serve/data/ssh/
+```
+
+***
+
+# Other Build Systems
+
+> "*What if I want to use this other thing, instead of a makefile?"
+
+***
+
+# Other Build Systems (Sans Heresy)
+
+> "*What if I want to use this other thing, instead of a makefile?"
+
+- Easy: just use a Makefile.
+
+
+```make
+
+[ ... ]
+
+public/: src/
+    python build_pages.py
+```
+

slides/makefiles/PS/omni_makefile

@@ -0,0 +1,34 @@
+CONFIGS = $(patsubst /%,%,$(shell cat configs))
+STORE = $(patsubst /%,%,$(shell cat store))
+CP = mkdir -p $(dir $@) && cp -a
+IGNORE_FILE = $(shell test -d .git/info && echo .git/info/exclude || echo .gitignore)
+GIT_COMMIT = git commit -m"add $@" --no-gpg-sign --no-signoff
+SELECTOR != command -v sk || command -v fzy || command -f fzf
+
+.PHONY: all
+all: init backup.tgz $(IGNORE_FILE)
+
+backup.tgz: $(CONFIGS) $(STORE)
+	tar czf $@ $^
+
+$(IGNORE_FILE): store
+	echo $(STORE) backup.tgz | tr ' ' '\n' > $@
+
+.PHONY: init
+init: configs store
+
+configs store:
+	while con="$$(find /var /etc/ /sys/ -maxdepth 2 -mindepth 1 -type f 2>/dev/null  | $(SELECTOR) -p "Select files for $@\nPress Ctrl+d once done")"; do \
+	echo "$$con"; \
+	done > $@
+
+$(CONFIGS): %: /%
+	$(CP) $< $@
+	git add $@
+	$(GIT_COMMIT)
+	$(info made git commit for $@)
+$(STORE): %: /%
+	$(CP) $< $@
+
+clean:
+	$(RM) -r $(CONFIGS) $(STORE) backup.tgz

slides/makefiles/dependency_ladder/.gitignore

@@ -0,0 +1 @@
+*

slides/makefiles/dependency_ladder/makes/books

@@ -0,0 +1,16 @@
+MONTHS != date +%B && date -d '1 month' +%B
+IP != dig +short myip.opendns.com @resolver1.opendns.com
+CITY != curl -s http://api.db-ip.com/v2/free/$(IP) | grep city | cut -d: -f2 | tr -d '"'
+
+TITLES = $(MONTHS)
+TITLES += $(CITY)
+
+BOOKS = $(patsubst %,Books/%.md,$(TITLES))
+
+$(BOOKS):
+	@mkdir -p $(@D)
+	fortune -l > $@
+
+progs += $(BOOKS)
+
+dross += Books/

slides/makefiles/dependency_ladder/makes/cows

@@ -0,0 +1,10 @@
+cows = $(patsubst Forts/fortune_%.md,Cows/cow-%.txt,$(wildcard Forts/fortune_*.md))
+
+$(cows): Cows/cow-%.txt: Forts/fortune_%.md
+	@mkdir -p $(@D)
+	cat $< | cowsay > $@
+
+progs += forts
+progs += $(cows)
+dross += Cows/
+

slides/makefiles/dependency_ladder/makes/forts

@@ -0,0 +1,11 @@
+
+fnums != seq 8 | sort -R | head -2
+forts = $(patsubst %,Forts/fortune_%.md,$(fnums))
+
+$(forts):
+	@mkdir -p $(@D)
+	fortune -s > $@
+
+progs += $(forts)
+
+dross += Forts/

slides/makefiles/dependency_ladder/makes/zoo

@@ -0,0 +1,14 @@
+filter = $(shell cowsay -l | sort -R | head -1)
+
+zoo = $(patsubst Forts/fortune_%.md,Zoo/animal-%.md,$(forts))
+
+$(zoo): Zoo/animal-%.md: Forts/fortune_%.md
+	@mkdir -p $(@D)
+	echo '```' > $@
+	cat $< | cowsay -f $(filter) >> $@
+	echo '```' >> $@
+
+progs += forts
+progs += $(zoo)
+
+dross += Zoo/

slides/makefiles/examples/.gitignore

@@ -0,0 +1 @@
+*

slides/makefiles/examples/check

@@ -0,0 +1,8 @@
+CHECKER = command -v
+.PHONY: check
+check:
+	$(CHECKER) fortune >/dev/null
+	$(CHECKER) cowsay >/dev/null
+
+file: | check
+	fortune | cowsay > $@

slides/makefiles/examples/fort_1

@@ -0,0 +1,13 @@
+
+forts/big_fort.txt: forts/short.txt forts/long.txt
+	cat forts/short.txt forts/long.txt > forts/big_fort.txt
+
+forts/:
+	mkdir forts
+
+forts/short.txt: forts/
+	fortune -s > forts/short.txt
+
+forts/long.txt: forts/
+	fortune -l > forts/long.txt
+

slides/makefiles/examples/fort_2

@@ -0,0 +1,21 @@
+
+forts/big_fort.txt: forts/short.txt forts/long.txt
+		cat $^ > $@
+
+README.md:
+	echo "For an example makefile for python" > $@
+	echo "check out the nd6 dice-roller at" >> $@
+	echo "ssh -p 2222 soft.dmz.rs -t nd6" >> $@
+
+
+forts/: README.md
+	mkdir -p $@
+
+forts/short.txt: forts/
+	fortune -s > $@
+
+forts/long.txt: forts/
+	fortune -l > $@
+
+clean:
+	rm -rf forts

slides/makefiles/examples/omni_makefile

@@ -0,0 +1 @@
+../PS/omni_makefile

slides/makefiles/examples/pats

@@ -0,0 +1,18 @@
+IMAGES = $(wildcard jpgs/*)
+COL = $(patsubst jpgs/%,collection/%,$(IMAGES))
+
+.PHONY: help
+help:
+	$(info try 'show' or 'output')
+.PHONY: show
+show:
+	$(info IMAGES is $(IMAGES))
+	$(info Col is $(COL))
+
+.PHONY: output
+output: $(COL)
+
+collection/%.jpg: jpgs/%.jpg
+	mkdir -p $(@D)
+	cp $< $@
+

slides/makefiles/examples/rules

@@ -0,0 +1,15 @@
+CP = ln -f
+
+output: pngs/ldap.png
+
+jpgs/ldap.jpg: ../../ldap/ldap.jpg
+	mkdir -p $(dir $@)
+	$(CP) $< $@
+
+pngs/%.png: jpgs/%.jpg
+	mkdir -p $(dir $@)
+	$(info making $(@F) in $(@D))
+	magick $< $@
+
+clean:
+	$(RM) -r pngs jpgs

slides/makefiles/examples/vars

@@ -0,0 +1,10 @@
+include /etc/os-release
+DAY != date +%d
+MESSAGE != fortune -s
+
+motd_$(DAY):
+	$(info Hello $(USER))
+	$(info Placing message:)
+	echo "Welcome to $(NAME)" > $@
+	echo $(MESSAGE) >> $@
+

slides/makefiles/makefiles.md

@@ -0,0 +1,13 @@
+---
+title:
+- Making Makefiles
+author:
+- Malin
+
+theme:
+- Warsaw
+colortheme:
+- orchid
+---
+
+(presentation in presentation.md)

slides/makefiles/presentation.md

@@ -0,0 +1,314 @@
+# Intro
+
+The fundamental problem:
+
+```bash
+git submodule update --init soundscape
+cargo build --release
+install -pm755 target/release/tap /usr/local/bin/
+```
+
+*But you can't type this for each run.*
+
+***
+
+## First Solution
+
+```bash
+#!/bin/sh
+git submodule update --init soundscape
+cargo build --release
+install -pm755 target/release/tap /usr/local/bin/
+```
+
+At this point, every test takes 10 minutes.
+
+## Second Solution
+
+```bash
+#!/bin/sh
+[ -f soundscape/.git ] || git submodule update --init soundscape
+[ -f target/release/tap ] || cargo build --release
+[ -f target/release/tap ] || \
+    install -pm755 target/release/tap /usr/local/bin/
+```
+
+***
+
+# Makefile Solutions
+
+- input, process, output.
+- automatic idempotence
+
+```bash
+INSTALL_DIR = /usr/local/bin
+
+soundscape/.git:
+    git submodule update --init soundscape
+
+/usr/local/bin/tap: target/release/tap
+	install -pm755 target/release/tap $(INSTALL_DIR)
+
+target/release/tap: src soundscape/.git
+	cargo build --release
+```
+
+***
+
+# The Three Sigils
+
+Readable, but slow:
+
+```make fort_1
+forts/big_fort.txt: forts/short.txt forts/long.txt
+	cat forts/short.txt forts/long.txt > forts/big_fort.txt
+
+forts/:
+	mkdir forts
+
+forts/short.txt: forts/
+	fortune -s > forts/short.txt
+
+forts/long.txt: forts/
+	fortune -l > forts/long.txt
+```
+
+***
+
+| Make this | From That | From These |
+|:---------:|:---------:|:----------:|
+|  `$@`     |  `$<`     |   `$^`     |
+
+
+```make fort_2
+forts/big_fort.txt: forts/short.txt forts/long.txt
+		cat $^ > $@
+
+forts/: README.md
+	mkdir $@
+forts/short.txt: forts/
+	fortune -s > $@
+forts/long.txt: forts/
+	fortune -l > $@
+```
+
+***
+
+# Gotcha: Directories
+
+
+```make fort_2
+forts/big_fort.txt: forts/short.txt forts/long.txt
+		cat $^ > $@
+
+forts/: README.md
+	mkdir $@
+forts/short.txt: forts/
+	fortune -s > $@
+forts/long.txt: forts/
+	fortune -l > $@
+
+README.md:
+    echo "Find the fortunes in the fort dir" > $@
+```
+
+***
+
+# Variables
+
+```make vars
+include /etc/os-release
+DAY != date +%d
+MESSAGE != fortune -s
+
+motd_$(DAY):
+	$(info Placing message:)
+	echo "Welcome to $(NAME)" > $@
+	echo $(MESSAGE) >> $@
+```
+
+### Gotcha: Hanging Quotes
+
+> echo "Welcome to "Arch Linux""
+
+***
+
+## Add New Variables
+
+```make
+make -f vars -e MESSAGE="Red alert, all hands on deck!"
+```
+
+### Gotcha: Quote, or Risk Escape
+
+```make
+make -f vars -e MESSAGE="<h1> HTML Headers </h1>"
+```
+
+***
+
+# Gotcha: Variables from Shell
+
+This works:
+
+```make
+file:
+    $(info Hello $(USER))
+```
+
+...but not this:
+
+```make
+file:
+    user=bob
+    echo $user
+```
+
+Nor this:
+
+```make
+numbers:
+    for x in 1 2 3 4 5; do
+        echo $x
+    done > $@
+```
+
+Nor this:
+
+```make
+numbers:
+    for x in 1 2 3 4 5; do echo $x ; done > $@
+```
+
+***
+
+### Ugly Fixes are Ugly
+
+This works, but don't.
+
+```make
+file:
+	for x in 1 2 ;\
+			do echo $$x ;\
+	done > $@
+```
+
+***
+
+
+# Phonies, and the Problems with Lies
+
+## Clean
+
+
+```make
+.PHONY: clean
+clean:
+    git clean -fdX
+```
+
+## Gotcha: Recompiling without Changes
+
+```make
+CHECKER = command -v
+.PHONY: check
+check:
+	$(CHECKER) fortune >/dev/null
+	$(CHECKER) cowsay >/dev/null
+
+file: check # Needs a '|'
+	fortune | cowsay > $@
+```
+
+***
+
+
+## Non-Compiling Checks
+
+- `make` -n
+- *Gotcha*: shell output variables.
+
+***
+
+
+# The Fourth Sigil: `%`
+
+Create standardized rules with `%`.
+
+
+```make rules
+CP = ln -f
+
+output: pngs/ldap.png
+
+jpgs/ldap.jpg: ../../ldap/ldap.jpg
+	mkdir -p $(dir $@)
+	$(CP) $< $@
+
+pngs/%.png: jpgs/%.jpg
+	mkdir -p $(dir $@)
+	$(info making $(@F) in $(@D))
+	magick $< $@
+```
+
+***
+
+# Bling: makefile2graph
+
+```graph
+
+┌────────────────┐     ┌────────────────────┐
+│ forts/long.txt │ ◀── │       forts/       │
+└────────────────┘     └────────────────────┘
+  │                      │
+  │                      │
+  │                      ▼
+  │                    ┌────────────────────┐
+  │                    │  forts/short.txt   │
+  │                    └────────────────────┘
+  │                      │
+  │                      │
+  │                      ▼
+  │                    ┌────────────────────┐
+  └──────────────────▶ │ forts/big_fort.txt │
+                       └────────────────────┘
+```
+
+### Gotcha: The Binary is Called `make2graph`
+
+- Works with GUI tools maybe, IDK, I don't use Windows.
+- Some systems can use `graph-easy`, but it's outdated.
+
+***
+
+# Patsubst and Wildcards
+
+
+```make pats
+IMAGES = $(wildcard jpgs/*)
+COL = $(patsubst jpgs/%,collection/%,$(IMAGES))
+
+.PHONY: show
+show:
+	$(info IMAGES is $(IMAGES))
+	$(info Col is $(COL))
+
+.PHONY: output
+output: $(COL)
+
+collection/%.jpg: jpgs/%.jpg
+	mkdir -p $(@D)
+	cp $< $@
+
+```
+
+***
+
+# Use Cases
+
+- Backups
+- Making Websites
+    * `git clone https://gitlab.com/bindrpg/blag`
+- `NOT installations`
+    - ...but maybe installations?
+- Setting

slides/rss/rss.md

@@ -0,0 +1,44 @@
+# RSS
+
+---
+
+- Released in 1999
+- Web feed
+- Podcasts
+- Aaron Swartz
+
+---
+
+## Pros 
+
+- Decentralized
+- No censure
+- Cut the middle man 
+- No ads
+- Not much to monetize
+- Offline reading (mountines, abroad)
+
+---
+
+## Apps
+
+- many clients
+
+- Web feed
+    - Thunderbird 
+    - Feeder on F-Droid
+- Podcasts
+    - Gpodder
+    - Antenna Pod on F-Droid
+
+---
+
+
+## Ideas to use in Decentrala 
+
+- feed with events page on website
+- some news or wiki
+- forum thread 
+
+
+

slides/selfhosting/selfhosting.md

@@ -0,0 +1,121 @@
+# Selfhosting
+
+---
+
+## Why should I selfhost?
+
+ - Privacy
+ - Security
+ - Freedom
+ - Can be cheaper
+ - To learn
+
+---
+
+## Hardware
+
+ - Any PC can become server
+ - Mini PC
+ - Single board computers (RasperryPi, etc.)
+ - Desktop  
+ - Enterprise
+
+### Storage
+
+ - More than one hdd 
+ - SAS vs HDD vs SSD vs NVMe
+ - RAID, RAID controllers
+
+### CPU
+
+- Xeon 
+- Rizen
+
+### UPS and APC
+
+### Backups
+
+### Network
+
+- Router
+- Switch
+
+
+---
+
+## Software
+
+ Linux containers (LXC) vs Virtual Machine (VM)
+
+
+### Server Managers
+
+ - Proxmox
+    - static ip on install
+    - raid
+ - XCP-ng
+
+### Container and Managment
+
+- Docker
+- Kubernetes (k8s) 
+- Portainer
+- Lilipod
+
+---
+
+## Network
+
+- Pfsense
+- OpenWRT
+
+
+---
+
+## Security
+  
+
+---
+
+## Services
+
+- Dmz Services
+- Proxmox comunity scripts
+
+### Popular
+
+- Home assistant
+- Jellyfin
+- Adblock
+- LLMs
+- Libredirect
+
+### Tools
+
+- Nginx and SSL
+    - Nginx Proxy Manager
+    - Caddy
+- VPN
+    - Wireguard
+    - Open VPN
+- SSH
+    - disable password login
+    - ssh jump
+    - local port forwarding
+
+
+## Dashboards and analytics
+
+- Dashy
+- Homepage
+- Grafana
+
+
+ ---
+
+## Licences
+
+- Copyleft
+- Permissive
+
+ ---

slides/stajedecentrala/stajedecentrala.md

@@ -33,7 +33,8 @@ Ekipa koju interesuje :
 
 # Lokacije
 
-- DC Krov hacklab
+- DC Krov
-- KC Grad radionce
+- KC Magacin
-- Matematicki Faklutet (cekamo)
+
-- Drugi fakulteti, skole?
+# Kontakt
+![qrcode](slides/stajedecentrala/qrcode.png)