diff --git a/docker-basics-and-troubleshoot/readme.md b/docker-basics-and-troubleshoot/readme.md
new file mode 100644
index 0000000..35cf08a
--- /dev/null
+++ b/docker-basics-and-troubleshoot/readme.md
@@ -0,0 +1,98 @@
+# Docker basics and troubleshooting
+
+###### guide-by-example
+
+![logo](https://i.imgur.com/GrWPooR.png)
+
+
+# Purpose
+
+For me to wrap head around some shit.
+Notes for troubleshooting.
+
+What was at one time tested and should 100% work.
+
+# docker-compose
+
+`docker-compose.yml`
+```yml
+services:
+
+ whoami:
+ image: "containous/whoami"
+ container_name: "whoami"
+ hostname: "whoami"
+ ports:
+ - "80:80"
+```
+
+
+
+# Scheduling and cron issues
+
+The default docker-compose deployment uses cron container.
+Problem is it does not work, so Ofelia is used.
+[Here](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/ofelia)
+is guide how to set it up.
+
+Bellow is Ofelia's config file for discovery and ping check of live hosts.
+
+`config.ini`
+```ini
+[job-exec "phpipam ping"]
+schedule = @every 10m
+container = phpipam-web
+command = /usr/bin/php /phpipam/functions/scripts/pingCheck.php
+
+[job-exec "phpipam discovery"]
+schedule = @every 25m
+container = phpipam-web
+command = /usr/bin/php /phpipam/functions/scripts/discoveryCheck.php
+```
+
+# Reverse proxy
+
+Caddy v2 is used, details
+[here](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/caddy_v2).
+
+`Caddyfile`
+```
+ipam.{$MY_DOMAIN} {
+ reverse_proxy phpipam-web:80
+}
+```
+
+# First run
+
+![logo](https://i.imgur.com/W7YhwqK.jpg)
+
+
+* New phpipam installation
+* Automatic database installation
+* MySQL username: root
+* MySQL password: my_secret_mysql_root_pass
+
+# Update
+
+[Watchtower](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/watchtower)
+updates the image automatically.
+
+Manual image update:
+
+- `docker-compose pull`
+- `docker-compose up -d`
+- `docker image prune`
+
+# Backup and restore
+
+#### Backup
+
+Using [borg](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/borg_backup)
+that makes daily snapshot of the entire directory.
+
+#### Restore
+
+* down the homer container `docker-compose down`
+* delete the entire homer directory
+* from the backup copy back the homer directory
+* start the container `docker-compose up -d`
diff --git a/jellyfin/readme.md b/jellyfin/readme.md
new file mode 100644
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--- /dev/null
+++ b/jellyfin/readme.md
@@ -0,0 +1,223 @@
+# Bookstack in docker
+
+###### guide-by-example
+
+![logo](https://i.imgur.com/qDXwqaU.png)
+
+# Purpose & Overview
+
+Documentation and notes.
+
+* [Official site](https://www.bookstackapp.com/)
+* [Github](https://github.com/BookStackApp/BookStack)
+* [DockerHub](https://hub.docker.com/r/linuxserver/bookstack)
+
+BookStack is a modern, open source, good looking wiki platform
+for storing and organizing information and documentation.
+
+Written in PHP, with MySQL database for the user data.
+There is no official Dockerhub image so the one maintained by
+[linuxserver.io](https://www.linuxserver.io/) is used,
+which uses nginx as a web server.
+
+# Files and directory structure
+
+```
+/home/
+└── ~/
+ └── docker/
+ └── bookstack/
+ ├── bookstack-data/
+ ├── bookstack-db-data/
+ ├── .env
+ ├── docker-compose.yml
+ └── bookstack-backup-script.sh
+```
+
+* `bookstack-data/` - a directory where bookstack will store its web app data
+* `bookstack-db-data/` - a directory where bookstack will store its MySQL database data
+* `.env` - a file containing environment variables for docker compose
+* `docker-compose.yml` - a docker compose file, telling docker how to run the containers
+* `bookstack-backup-script.sh` - a backup script if you want it
+
+You only need to provide the files.
+The directories are created by docker compose on the first run.
+
+# docker-compose
+
+Dockerhub linuxserver/bookstack
+[example compose.](https://hub.docker.com/r/linuxserver/bookstack)
+
+`docker-compose.yml`
+```yml
+version: "2"
+services:
+
+ bookstack-db:
+ image: linuxserver/mariadb
+ container_name: bookstack-db
+ hostname: bookstack-db
+ restart: unless-stopped
+ env_file: .env
+ volumes:
+ - ./bookstack-db-data:/config
+
+ bookstack:
+ image: linuxserver/bookstack
+ container_name: bookstack
+ hostname: bookstack
+ restart: unless-stopped
+ env_file: .env
+ depends_on:
+ - bookstack-db
+ volumes:
+ - ./bookstack-data:/config
+
+networks:
+ default:
+ external:
+ name: $DOCKER_MY_NETWORK
+```
+
+`.env`
+```bash
+# GENERAL
+MY_DOMAIN=example.com
+DOCKER_MY_NETWORK=caddy_net
+TZ=Europe/Bratislava
+
+#LINUXSERVER.IO
+PUID=1000
+PGID=1000
+
+# BOOKSTACK-MARIADB
+MYSQL_ROOT_PASSWORD=bookstack
+MYSQL_DATABASE=bookstack
+MYSQL_USER=bookstack
+MYSQL_PASSWORD=bookstack
+
+# BOOKSTACK
+APP_URL=https://book.example.com
+DB_HOST=bookstack-db
+DB_USER=bookstack
+DB_PASS=bookstack
+DB_DATABASE=bookstack
+
+# USING SENDGRID FOR SENDING EMAILS
+MAIL_ENCRYPTION=SSL
+MAIL_DRIVER=smtp
+MAIL_HOST=smtp.sendgrid.net
+MAIL_PORT=465
+MAIL_FROM=book@example.com
+MAIL_USERNAME=apikey
+SMTP_PASSWORD=
+```
+
+**All containers must be on the same network**.
+Which is named in the `.env` file.
+If one does not exist yet: `docker network create caddy_net`
+
+# Reverse proxy
+
+Caddy v2 is used, details
+[here](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/caddy_v2).
+
+`Caddyfile`
+```
+book.{$MY_DOMAIN} {
+ reverse_proxy bookstack:80
+}
+```
+
+# First run
+
+Default login: `admin@admin.com` // `password`
+
+---
+
+![interface-pic](https://i.imgur.com/cN1GUZw.png)
+
+# Update
+
+[Watchtower](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/watchtower)
+updates the image automatically.
+
+Manual image update:
+
+- `docker-compose pull`
+- `docker-compose up -d`
+- `docker image prune`
+
+# Backup and restore
+
+#### Backup
+
+Using [borg](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/borg_backup)
+that makes daily snapshot of the entire directory.
+
+#### Restore
+
+* down the bookstack containers `docker-compose down`
+* delete the entire bookstack directory
+* from the backup copy back the bookstack directory
+* start the containers `docker-compose up -d`
+
+# Backup of just user data
+
+Users data daily export using the
+[official procedure.](https://www.bookstackapp.com/docs/admin/backup-restore/)
+For bookstack it means database dump and backing up several directories
+containing user uploaded files.
+
+Daily [borg](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/borg_backup) run
+takes care of backing up the directories.
+So only database dump is needed.
+The created backup sqlite3 file is overwritten on every run of the script,
+but that's ok since borg is making daily snapshots.
+
+#### Create a backup script
+
+Placed inside `bookstack` directory on the host
+
+`bookstack-backup-script.sh`
+```bash
+#!/bin/bash
+
+# CREATE DATABASE DUMP, bash -c '...' IS USED OTHERWISE OUTPUT > WOULD TRY TO GO TO THE HOST
+docker container exec bookstack-db bash -c 'mysqldump -u $MYSQL_USER -p$MYSQL_PASSWORD $MYSQL_DATABASE > $MYSQL_DIR/BACKUP.bookstack.database.sql'
+```
+
+the script must be **executable** - `chmod +x bookstack-backup-script.sh`
+
+#### Cronjob
+
+Running on the host, so that the script will be periodically run.
+
+* `su` - switch to root
+* `crontab -e` - add new cron job
+* `0 22 * * * /home/bastard/docker/bookstack/bookstack-backup-script.sh`
+ runs it every day [at 22:00](https://crontab.guru/#0_22_*_*_*)
+* `crontab -l` - list cronjobs to check
+
+# Restore the user data
+
+Assuming clean start, first restore the database before running the app container.
+
+* start only the database container: `docker-compose up -d bookstack-db`
+* copy `BACKUP.bookstack.database.sql` in `bookstack/bookstack-db-data/`
+* restore the database inside the container
+ `docker container exec --workdir /config bookstack-db bash -c 'mysql -u $MYSQL_USER -p$MYSQL_PASSWORD $MYSQL_DATABASE < BACKUP.bookstack.database.sql'`
+* now start the app container: `docker-compose up -d`
+* let it run so it creates its file structure
+* down the containers `docker-compose down`
+* in `bookstack/bookstack-data/www/`
+ replace directories `files`,`images`,`uploads` and the file `.env`
+ with the ones from the BorgBackup repository
+* start the containers: `docker-compose up -d`
+* if there was a major version jump, exec in to the app container and run `php artisan migrate`
+ `docker container exec -it bookstack /bin/bash`
+ `cd /var/www/html/`
+ `php artisan migrate`
+
+Again, the above steps are based on the
+[official procedure.](https://www.bookstackapp.com/docs/admin/backup-restore/)
diff --git a/nextcloud/readme.md b/nextcloud/readme.md
index 47eb55d..6c0e079 100644
--- a/nextcloud/readme.md
+++ b/nextcloud/readme.md
@@ -75,7 +75,7 @@ services:
image: mariadb
container_name: nextcloud-db
hostname: nextcloud-db
- command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
+ command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --innodb_read_only_compressed=OFF
restart: unless-stopped
env_file: .env
volumes:
diff --git a/phpipam/readme.md b/phpipam/readme.md
index dd6b70f..036116c 100644
--- a/phpipam/readme.md
+++ b/phpipam/readme.md
@@ -19,8 +19,7 @@ IP address managment, LAN information and documentation tool.
IPAM is a universal term that stands for
[IP Address Management](https://en.wikipedia.org/wiki/IP_address_management).
-
-phpIPAM is open source tool fullfilling this purpose.
+phpIPAM is an open source tool fullfilling this purpose.
Coded in php and using mariadb for database.
My exposure to it is limited and at this moment
@@ -84,7 +83,7 @@ services:
```bash
# GENERAL
DOCKER_MY_NETWORK=caddy_net
-TZ=EuropeBratislava
+TZ=Europe/Bratislava
IPAM_DATABASE_HOST=phpipam-mariadb
IPAM_DATABASE_PASS=my_secret_phpipam_pass