I wouldn’t call that a ‘modern’ home brew. There are a few issues from a quick view:

• Sanitize everything
• take OG readings
• Don’t use wood. Stainless or plastic are better *<=edit for clarity *
• Sanitize everything
• stagger the nutrients if you can
• 4 days on the fruit may not enough
• take SG readings
• use a syphon
• Sanitize everything
• don’t use muslin
• vodka is better than water in the airlock
• take FG readings
• use an auto-syphon - don’t put your dirty lips all over the syphon
• Sanitize everything

One last point that I didn’t mention above but is very important, Sanitize Everything

PS I make meads and one of my favorite is a Feijoa mead