Wave changes

Linux/20250213124335-i3_wm.org

@@ -0,0 +1,16 @@
+:PROPERTIES:
+:ID:       9d5aae0f-4ae1-49a5-a047-9099baad0a06
+:END:
+#+title: i3-wm
+#+filetags: :guide:
+
+* Commands:
+*Mod1 = Win Key*
+
+$mod+Enter = Open Terminal
+$mod+s = Stacked layout
+$mod+e = Default layout
+$mod+d = dmenu
+
+
+* Config file:

Linux/20250417173809-linux_moc.org

@@ -0,0 +1,11 @@
+:PROPERTIES:
+:ID:       bdb493df-db92-4c93-9558-0b10fdff3048
+:END:
+#+title: linux_moc
+#+filetags: :index:linux:
+
+- [[id:7612a9a6-ae70-4525-93a0-81bac857df39][wacom-notes]]
+- [[id:bf277242-4f09-46a2-aa6b-1d75ce0025ac][systemd_services]]
+- [[id:30c28e5e-0b1c-43ae-b3bd-eb31023f8b73][gpg-encryption]]
+- [[id:569a4a57-1843-4821-8259-17762855985e][linux-arch-linux]]
+- [[id:9d5aae0f-4ae1-49a5-a047-9099baad0a06][i3-wm]] 

Linux/20250417173809-linux_stuff.org

@@ -0,0 +1,17 @@
+:PROPERTIES:
+:ID:       bdb493df-db92-4c93-9558-0b10fdff3048
+:END:
+#+title: Linux MOC
+#+filetags: :linux:moc:
+
+- [[id:7612a9a6-ae70-4525-93a0-81bac857df39][wacom-notes]]
+
+- [[id:bf277242-4f09-46a2-aa6b-1d75ce0025ac][systemd_services]]
+
+- [[id:30c28e5e-0b1c-43ae-b3bd-eb31023f8b73][gpg-encryption]]
+
+- [[id:569a4a57-1843-4821-8259-17762855985e][linux-arch-linux]]
+
+- [[id:9d5aae0f-4ae1-49a5-a047-9099baad0a06][i3-wm]] 
+
+- [[id:0217f537-442a-4593-8c69-d481f0d1f2a8][keyboard]] 

Linux/20250417173821-wacom_notes.org

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+:PROPERTIES:
+:ID:       7612a9a6-ae70-4525-93a0-81bac857df39
+:END:
+#+title: wacom-notes
+#+filetags: :hardware:linux:wacom:
+
+The command: ~xsetwacom --list~ gave me: 
+
+#+BEGIN_SRC bash
+Wacom One by Wacom M Pen stylus 	id: 12	type: STYLUS    
+Wacom One by Wacom M Pen eraser 	id: 13	type: ERASER    
+#+END_SRC
+
+Then, in order to map the stylus to a single monitor i needed to know my monitor mappings via ~xrandr~:
+
+#+begin_src bash
+
+  Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 32767 x 32767
+DP-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 600mm x 340mm
+   1920x1080     60.00*+ 143.85   119.98    59.94  
+   1680x1050     59.95  
+   1440x900      59.89  
+   1440x576      50.00  
+   1440x480      59.94  
+   1280x1024     75.02    60.02  
+   1280x960      60.00  
+   1280x720      60.00    59.94  
+   1152x864      75.00  
+   1024x768      75.03    70.07    60.00  
+   800x600       75.00    72.19    60.32    56.25  
+   720x480       59.94  
+   640x480       75.00    72.81    59.94    59.93  
+DP-1 disconnected (normal left inverted right x axis y axis)
+HDMI-0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 521mm x 293mm
+   1920x1080     60.00*+  59.94    50.00  
+   1680x1050     59.95  
+   1600x900      60.00  
+   1440x900      59.89  
+   1280x1024     60.02  
+   1280x800      59.81  
+   1280x720      60.00    59.94    50.00  
+   1024x768      70.07    60.00  
+   800x600       72.19    60.32    56.25  
+   720x576       50.00  
+   720x480       59.94  
+   640x480       72.81    59.94  
+DP-2 disconnected (normal left inverted right x axis y axis)
+DP-3 disconnected (normal left inverted right x axis y axis)
+DP-4 disconnected (normal left inverted right x axis y axis)
+DP-5 disconnected (normal left inverted right x axis y axis)
+
+
+  
+#+end_src
+
+Then I simply map it via:
+
+~xsetwacom set "Wacom One by Wacom M Pen stylus" MapToOutput HEAD-0~

Linux/20250428133236-systemd_services.org

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+:PROPERTIES:
+:ID:       bf277242-4f09-46a2-aa6b-1d75ce0025ac
+:END:
+#+title: systemd_services
+#+filetags: :linux:systemd:
+
+
+* To add a systemctl
+
+   - create a new systemd service file:
+     `sudo nano /etc/systemd/system/name.service`
+
+   - example content:
+    [Unit]
+    Description=Watch TODO Directory and Update Master Task List
+    After=network.target
+
+    [Service]
+    ExecStart=/usr/local/bin/watch-todo.sh
+    Restart=always
+    User=zaine
+    WorkingDirectory=/home/zaine/master-folder/org_files/todo
+    StandardOutput=append:/var/log/watch-todo.log
+    StandardError=append:/var/log/watch-todo.log
+
+    [Install]
+    WantedBy=multi-user.target
+
+   - reload and start:
+     sudo systemctl daemon-reload
+     sudo systemctl enable watch-todo.service
+     sudo systemctl start watch-todo.service
+
+* To remove a systemctl service:
+
+    systemctl stop [servicename]
+    systemctl disable [servicename]
+    rm /etc/systemd/system/[servicename]
+    rm /etc/systemd/system/[servicename] # and symlinks that might be related
+    rm /usr/lib/systemd/system/[servicename] 
+    rm /usr/lib/systemd/system/[servicename] # and symlinks that might be related
+    systemctl daemon-reload
+    systemctl reset-failed
+

Linux/20250516161728-gpg_encryption.org

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+:PROPERTIES:
+:ID:       30c28e5e-0b1c-43ae-b3bd-eb31023f8b73
+:END:
+#+title: gpg-encryption
+#+filetags: :linux:security:gpg:
+
+If you want to encrypt a file, use the following command:
+
+#+begin_src bash
+
+  gpg -c file.txt
+
+  # options include :
+  # gpg -c file.txt : for symmetric encryption
+  # gpg -d file.txt.gpg : to decrypt the file
+  # gpg --batch -c --passphrase mypassphrase file.txt : accepts passphrase right from command line  
+
+#+end_src
+
+and to decrypt, use:
+
+#+begin_src bash
+
+  gpg -d file.txt
+
+  # You have to wait 10 minutes before you can get prompted for a password, before this, it will
+  # decrypt without the passphrase.
+
+#+end_src
+
+gpg --batch -c --passphrase Shakkal123! passwords.md
+
+gpg --batch -d --passphrase Shakkal123! passwords.md.gpg
+
+gpg --batch --output passwords.md -d --passphrase Shakkal123! passwords.md.gpg

Linux/20250703183239-linux_arch_linux.org

@@ -0,0 +1,16 @@
+:PROPERTIES:
+:ID:       569a4a57-1843-4821-8259-17762855985e
+:END:
+#+title: linux-arch-linux
+#+filetags: :linux:arch:
+
+* Links:
+- https://www.geeksforgeeks.org/how-to-install-intellij-idea-on-arch-based-linux-distributionsmanjaro/
+
+
+#+begin_src shell
+
+  sudo fuser -k 8000/tcp
+
+#+end_src
+

Linux/20250723190927-self_hosting.org

@@ -0,0 +1,9 @@
+:PROPERTIES:
+:ID:       99533f2d-a4e8-41d0-a605-c7d4cef6f995
+:END:
+#+title: self_hosting
+#+filetags: :networking:self-hosting:index:
+
+https://hub.docker.com/_/nextcloud
+
+[[id:56f39be4-1108-4020-be5a-1f3a0fbf96fa][nextcloud]]

Linux/20250727120306-nextcloud.org

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+:PROPERTIES:
+:ID:       56f39be4-1108-4020-be5a-1f3a0fbf96fa
+:END:
+#+title: Nextcloud
+#+filetags: :self-hosting:
+
+* The docker file:
+
+#+begin_src bash
+
+  version: '3.8'
+  services:
+    app:
+      image: nextcloud
+      restart: unless-stopped
+      ports:
+        - 8007:80
+      volumes:
+        - nextcloud:/var/www/html
+      environment:
+        - POSTGRES_DB=nextcloud
+        - POSTGRES_USER=nextcloud
+        - POSTGRES_PASSWORD=zxq123_nextcloud
+        - POSTGRES_HOST=postgres
+      networks:
+        - postgres_network
+
+  volumes:
+    nextcloud:
+
+  networks:
+    postgres_network:
+      external: true
+
+#+end_src
+
+* Database related things:
+
+#+begin_src bash
+
+  zxq_db=# CREATE DATABASE nextcloud;
+  CREATE DATABASE
+  zxq_db=# CREATE USER nextcloud WITH PASSWORD 'zxq123_nextcloud';
+  CREATE ROLE
+  zxq_db=# GRANT ALL PRIVILEGES ON DATABASE nextcloud TO nextcloud;
+  GRANT
+  zxq_db=# 
+
+#+end_src
+
+
+* Permissions:
+
+** *Not sure if the below still applies*
+#+begin_src bash
+  
+# Add yourself and www-data to a shared group
+
+### Create a shared group:
+
+sudo groupadd ncshare
+
+### Add both users:
+
+sudo usermod -aG ncshare zaine
+sudo usermod -aG ncshare www-data
+
+### Set the folder to that group:
+
+sudo chown -R zaine:ncshare /home/zaine/master-folder
+sudo chmod -R 775 /home/zaine/master-folder
+
+
+#+end_src
+
+** <2026-03-25 Wed> fixes:
+
+Up To Date Fixes:
+We need to add zaine to the www-data group:
+
+#+begin_src bash
+  sudo usermod -aG www-data zaine
+#+end_src
+
+Then we need to make the directories setgid, so that any new files created will have the group www-data:
+
+#+begin_src bash
+  sudo chown -R zaine:www-data /home/zaine/master-folder
+  sudo chmod -R 2775 /home/zaine/master-folder # the 2 sets the setgid bit, which means that new files will inherit the group of the directory, which is www-data
+#+end_src
+
+*** Older fixes
+So apparently, nextcloud needs to have www-data as the owner of the files, and to do that, we need to run the following command:
+
+#+begin_src bash
+sudo chown -R www-data:www-data /home/zaine/master-folder
+#+end_src
+
+I modified the build scripts to change permissions back to zaine:zaine when deleting the output folder, then changing it back to www-data:www-data.
+
+One other useful thing may be:
+
+#+begin_src bash
+
+  docker exec -u 1000:1000 -it nextcloud-app-1 php occ files:scan --all
+
+  # or
+
+  docker exec -u 1000 nextcloud-app-1 php occ files:scan --path="zaine/files/master-folder"
+
+#+end_src
+
+One other thing:
+
+#+begin_src bash
+    i FIXED IT BY doing this: 
+
+  zaine@zaine-HP-ProDesk-400-G1-SFF [09:47:47] [~/docker-services/nextcloud] 
+  -> % docker exec -it postgres psql -U nextcloud -d nextcloud 
+  psql (17.5 (Debian 17.5-1.pgdg120+1))
+  Type "help" for help.
+
+  nextcloud=> SELECT * FROM oc_file_locks;
+  nextcloud=> DELETE FROM oc_file_locks;
+  DELETE 15002
+  nextcloud=> \q
+  zaine@zaine-HP-ProDesk-400-G1-SFF [09:49:01] [~/docker-services/nextcloud] 
+  -> % docker exec -it nextcloud-app-1 ls /mnt/master-folder  
+  alimiyyah  attachments	booking  career  hurra.txt  org_files  pdfs  projects  uni
+  zaine@zaine-HP-ProDesk-400-G1-SFF [09:49:04] [~/docker-services/nextcloud] 
+  -> % docker exec -u 1000 -it nextcloud-app-1 php occ files:scan --all
+  Starting scan for user 1 out of 2 (halima)
+  Starting scan for user 2 out of 2 (zaine)
+  +---------+-------+-----+---------+---------+--------+--------------+
+  | Folders | Files | New | Updated | Removed | Errors | Elapsed time |
+  +---------+-------+-----+---------+---------+--------+--------------+
+  | 1985    | 12906 | 0   | 522     | 0       | 0      | 00:00:50     |
+  +---------+-------+-----+---------+---------+--------+--------------+
+  zaine@zaine-HP-ProDesk-400-G1-SFF [09:49:59] [~/docker-services/nextcloud] 
+  -> %   
+
+  there is some issue in the nextcloud permissions itself. if i create a file and delete it in windows, i get this error in the client: A
+  master-folder/hehe.txt
+  now
+  The resource you are trying to access is currently locked and cannot be modified. Please try changing it later, or contact your server administrator ...
+
+  and if i try to delete it in nextcloud ui (web), it says file cant be deleted
+
+#+end_src
+
+
+
+* Config
+
+Location is:
+
+sudo nano /var/lib/docker/volumes/nextcloud_nextcloud/_data/config/config.php
+
+* Accounts
+User is: zaine
+Pass: Shakkal123!
+
+* Legacy stuff
+Something I've been trying to reverse proxy ahead of time. Go to https://zserver.zapto.org/nextcloud , you'll be prompted to login with a username and password:
+Here's your credentials:
+
+Username: halima
+Password: loser2104!
+
+Once you've logged in, I've set up your account already, so there should be a calendar already there. 
+
+To get your phone logged in, there's two ways:
+1) go to the following address: https://zserver.zapto.org/nextcloud/settings/user/security , scroll to the bottom, under devices and sessions, type in a random name (iphone), and click create new app password. You should then be able to generate a QR code (next to or under the password field), then you can scan that on your iphone app.
+
+2) inside the app, type the following URL:  https://zserver.zapto.org/nextcloud then follow the instructions.
+
+Im thinking of having this as our shared calendar and file system. The only users are us 2 and its completely off the internet (self-hosted).
+
+
+** network issues resolved by:
+
+#+begin_src bash
+
+  docker network connect postgres_network postgres
+
+  zaine@zaine-HP-ProDesk-400-G1-SFF [21:00:27] [~/docker-services/nextcloud] 
+  -> % psql -h zserver.zapto.org -p 5432 -U zaine -d zxq_db
+  Password for user zaine: 
+  psql (14.18 (Ubuntu 14.18-0ubuntu0.22.04.1), server 17.5 (Debian 17.5-1.pgdg120+1))
+  WARNING: psql major version 14, server major version 17.
+  Some psql features might not work.
+  Type "help" for help.
+
+  zxq_db=# \c nextcloud
+  psql (14.18 (Ubuntu 14.18-0ubuntu0.22.04.1), server 17.5 (Debian 17.5-1.pgdg120+1))
+  WARNING: psql major version 14, server major version 17.
+  Some psql features might not work.
+  You are now connected to database "nextcloud" as user "zaine".
+  nextcloud=# GRANT ALL PRIVILEGES ON DATABASE nextcloud TO nextcloud;
+  GRANT
+  nextcloud=# GRANT USAGE ON SCHEMA public TO nextcloud;
+  GRANT CREATE ON SCHEMA public TO nextcloud;
+  GRANT
+  GRANT
+  nextcloud=# GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO nextcloud;
+  GRANT
+  nextcloud=# GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO nextcloud;
+  GRANT
+  nextcloud=# 
+
+  zaine
+  M22ZN-fmefj-RdF36-3BMfT-LfWo8
+
+  zaine
+  zxh123!
+
+#+end_src
+
+** Connecting to IOS
+https://www.reddit.com/r/NextCloud/comments/1pehpft/calendar_app_for_ios/

Linux/20251019114736-server_moc.org

@@ -0,0 +1,18 @@
+:PROPERTIES:
+:ID:       f09cb4ed-1407-4187-9002-de2c5db13a8f
+:END:
+#+title: Server MOC
+#+filetags: :moc:server:
+
+[[id:2c2d8df4-ad36-40ab-9f30-8a047b372956][old_nextcloud_server_code]]
+
+- [[id:a9829b5d-690d-4a21-ba94-ac8beac4d439][Old NGINX Config]]
+
+- [[id:effa2bf5-8b04-42d3-b9c1-17160dc4ddc2][Actual]] 
+
+- [[id:9a71daa4-d9d4-4706-98f1-72e3d4eda9bc][Server Backend]]
+
+- [[id:56f39be4-1108-4020-be5a-1f3a0fbf96fa][nextcloud]]
+
+- [[id:e12ef44d-69a4-45c8-a823-c810d2c3857c][Vaultwarden]] 
+

Linux/20260104155940-server_backend.org

@@ -0,0 +1,86 @@
+:PROPERTIES:
+:ID:       9a71daa4-d9d4-4706-98f1-72e3d4eda9bc
+:END:
+#+title: Server Backend
+#+filetags: :server:java:api:
+
+* Introduction
+The original backend was written using FastAPI and has now been archived.
+
+In replacement, I have written a Java Spring Boot backend that handles all of the API calls the domain ~zainezq.com~ uses.
+
+Here is the repository for the backend:
+
+[[https://gitea.zainezq.com/zaine/org_backend][Link to the backend repository]]
+
+
+* Structure
+
+The backend is structured as a typical Spring Boot application. It consists of several packages that handle different aspects of the application:
+- **Controllers**: These classes handle incoming HTTP requests and map them to appropriate service methods.
+- **Services**: These classes contain the business logic of the application.
+- **Repositories**: These classes interact with the database to perform CRUD operations.
+- **Models**: These classes represent the data structures used in the application.
+
+The full list of API endpoints can be viewed using Swagger UI, which is available at the ~/swagger-ui.html~ endpoint once the application is running.
+
+* Running the Application
+
+The application is built using Maven. To run the application, you can utilise the ~Makefile~ provided in the repository.
+
+The project is packaged as a Docker container, making it easy to deploy. You can build and run the Docker container using the following commands:
+
+#+begin_src bash
+
+    docker compose build org_backend
+
+    docker compose up -d org_backend
+
+    # Alternatively:
+    docker compose down && docker compose build --no-cache && docker compose up -d
+
+    # To check logs
+
+    docker logs -f org_backend
+
+#+end_src
+
+* Bruno
+Bruno is used for testing the backend API endpoints. It is a simple HTTP client that allows you to send requests to the backend and view the responses. I used the OpenAPI specification to generate Bruno tests for each endpoint.
+
+* Future?
+** Integration with ~notes.zainezq.com~
+As the API is primarily used by ~zainezq.com~, I want to think of ways that ~notes.zainezq.com~ could also use it. This website is used to store all my notes, and they are exported using ~org-publish~ in Emacs. Perhaps I could write an Emacs Lisp package that interacts with the backend API to store and retrieve notes.
+
+Flow of how a note would be written:
+1. User writes a note in ~notes.zainezq.com~ as org mode.
+2. When the note is saved, a POST request is sent to the backend API with the note content.
+3. The backend API stores the note in the database.
+4. This will trigger a function that republishes the notes website to include the new note.
+
+**Need to think more about this.**
+
+* Update
+
+The org-backend is no longer hosted using docker, it is now using systemd. The backend is still built using Maven, but it is now deployed as a standalone application rather than a Docker container.
+
+Here are the commands needed:
+
+#+begin_src bash
+
+  # To build the application
+  mvn clean package -DskipTests
+
+  # To run the application
+  java -jar target/org_backend-1.0.0-SNAPSHOT.jar
+
+  # systemctl commands
+  sudo systemctl start org_backend
+  sudo systemctl stop org_backend
+  sudo systemctl restart org_backend
+  sudo systemctl status org_backend
+
+  # To check logs
+  journalctl -u org_backend -f
+
+  #+end_src

Linux/20260227103506-vaultwarden.org

@@ -0,0 +1,15 @@
+:PROPERTIES:
+:ID:       e12ef44d-69a4-45c8-a823-c810d2c3857c
+:END:
+#+title: Vaultwarden
+
+
+Just ran into an issue where the IOS app was failing due to the latest version of bitwarden not being installed on the server. To fix this:
+
+#+begin_src bash
+
+  docker compose pull 
+
+  docker compose up -d
+
+#+end_src