This is a Powershell script that will randomly connect to one of the ikev2 Surfshark servers when called.
Because rasdial.exe is broken since Windows 10 21H1 and ignores user and password, you shall manually connect once saving your credentials, before the script works.
If you need it for JDownloader, set Reconnect Method to "External Batch Reconnect"

Solução Emergencial para Backup usando recursos disponíveis no escritório e Duplicati.

Devido ao colapso do servidor de arquivos da Polícia Rodoviária Federal em Contagem, foi preciso encontrar uma alternativa usando equipamentos não especializados. O setor de documentação produz diariamente aproximadamente 10GB de arquivos digitalizados correspondentes a documentos físicos majoritariamente encaminhados por correspondência. É relevante que estes dados sejam preservados indefinidamente até que um novo servidor de arquivos seja adquirido. Para tal, um drive externo de 2TB foi compartilhado através de um corriqueiro notebook de trabalho pessoal, com Windows 10, segregado para este novo fim. Para atingir o fim de redundância, um segundo drive externo de 2TB foi instalado em um notebook pessoal localizado em sala diversa e durante o horário comercial, o software Duplicati rodando no notebook dedicado realiza backups naquele. Como segunda redundância, tal software também faz um backup parcial dos últimos 60 dias (devido à limitação de espaço, no armazenamento interno de um terceiro notebook pessoal.

"In my opinion Calibre is a marvelous tool but is too big and has too much dependencies to be used for its content server. That's the main reason why I coded this OPDS server. I needed a simple tool to be installed on a small server (Seagate Dockstar in my case).
I initially thought of Calibre2OPDS but as it generate static file no search was possible.
Later I added an simple HTML catalog that should be usable on my Kobo.
So COPS's main advantages are :

• No need for many dependencies.
• No need for a lot of CPU or RAM.
• Not much code.
• Search is available.
• It was fun to code."  From: Cops Source

Double page splitter: Useful to split the pages from a book scanned opened.

Free Time Stamp servers:
http://sha256timestamp.ws.symantec.com/sha256/timestamp
http://timestamp.globalsign.com/scripts/timstamp.dll
https://timestamp.geotrust.com/tsa
http://timestamp.verisign.com/scripts/timstamp.dll 
http://timestamp.comodoca.com/rfc3161
http://timestamp.wosign.com
http://tsa.startssl.com/rfc3161
http://time.certum.pl
http://timestamp.digicert.com
https://freetsa.org
http://dse200.ncipher.com/TSS/HttpTspServer
http://tsa.safecreative.org
http://zeitstempel.dfn.de
https://ca.signfiles.com/tsa/get.aspx
http://services.globaltrustfinder.com/adss/tsa
https://tsp.iaik.tugraz.at/tsp/TspRequest
http://timestamp.apple.com/ts01
Source

Remove files recursively:
find . -type f -iname '*.jpeg' -delete
find . -type f -iname '*.jpeg' -exec rm {} \;
find . -type f -iname '*.jpeg' -exec rm {} +
shopt -s globstar && rm -- **/*.o

Backup clonning using Hard Links
rsync -avm --ignore-existing --link-dest=. $SOURCE/ $DESTINATION/

Remove empty directories
find . -type d -depth -exec rmdir {} \;

The hardest part to activate eBay 2FA is to found the right URL. Here you are: https://scgi.ebay.com/ws/eBayISAPI.dll?ActivateSecurityToken
I didn't know that I could activate eBay 2FA using the Symantec VIP Access softkey (https://m.vip.symantec.com) because the eBay page states the hard token as only option. You need to use the VIP Access Credential ID as the hard key serial number and wait for two timed Security Codes to use as OTP.
But I found a even better alternative: https://github.com/cyrozap/python-vipaccess is a python FOSS "implementation of Symantec's VIP Access client. It is able to generate OATH URIs and their corresponding QR codes so any TOTP-generating application can be used as a VIP OTP token."
You don't need two apps. You can generate a QR code and register it in an app like Authy or Google Authenticator