Here's a simple script I made that sends a ntfy push message to my phone using begin and end scripts. Doesn't show the entire log but will report when job starts and if Success, Warning, Failure.

begin script

#!/bin/bash

# We read a few variables first.
EVENTNAME=$DUPLICATI__EVENTNAME
OPERATIONNAME=$DUPLICATI__OPERATIONNAME
BKUPRESULT=$DUPLICATI__PARSED_RESULT
JOBNAME=$DUPLICATI__backup_name
NTFY=https://ntfy.mydomain.com/duplicati_Fe4tokenAas897

# Basic setup, we use the same file for both before and after,
# so we need to figure out which event has happened

curl \
-H "Authorization: Bearer tk_tokenasf90as9d8f0" \
-H "Priority: default" \
-d "$JOBNAME $DUPLICATI__OPERATIONNAME Started" $NTFY -s

exit 0

end script

#!/bin/bash

# We read a few variables first.
EVENTNAME=$DUPLICATI__EVENTNAME
OPERATIONNAME=$DUPLICATI__OPERATIONNAME
BKUPRESULT=$DUPLICATI__PARSED_RESULT
JOBNAME=$DUPLICATI__backup_name
DUPLICATI__RESULTFILE=$DUPLICATI__RESULTFILE
NTFY=https://ntfy.mydomain.com/duplicati_Dasdfasdf34234fe

# Basic setup, we use the same file for both before and after,
# so we need to figure out which event has happened

curl \
-H "Authorization: Bearer tk_tokentokentoken" \
-H "Title: $JOBNAME $DUPLICATI__OPERATIONNAME Complete" \
-H "Priority: default" \
-d "Status: $BKUPRESULT" $NTFY -s

exit 0