My Maternal Grandfather died two years ago.
It was the first death in our small, close family. (Dad's dad died before mum and dad knew each other)
As sh!t comes in threes, my brothers marriage was failing and I had lost my job, and I came down a couples of days before to 'help'
Mum, ever the organiser, had brought in bits like quiche, sausages rolls to cook in the oven, stuff to make sarnies on the morning etc.
As luck was not going our familys' way, my gran had a heart attack in the early hours of the day. So mum had to rush off with dad in tow.
Which left me like a bit of a headless chicken; sausage rolls to cook, sarnies to knock up.
I can make a very respectable 'Builders Sandwich' but that won't do for a wake.
Luckily dad came back a hour or so later, and we got a system going; I buttered and chopped stuff up and he prepared.
OH who sleeps for her country, was roused and did a sterling job of hovering and tidying.
After the funeral, our little unit came back; minus mum and gran, who all credit to the hospital got her well enough to attend, albeit in a wheelchair, who went back to hospital.
I was totally devastated by gramps passing; All say I so very like him, so I put myself on tea duty, and handing stuff out. The kettle was never off the boil, people will always drink tea.
To get it back to food, all the guests commented on what a nice spread it was, and that the home made sarnies and pork pies (he loved a pork pie, just like me) were just what he would have enjoyed.
We didn't offer alcohol, except for a glass of Guiness, which gramps loved (again just like me) and a sherry for the ladies, if they preferred, for a final toast/moment to remember.
For me a wake is not like an engagement party or a wedding reception, where people like a bit of grub to dilute the booze. Or a Dinner party where one can feel judged.
It is more 'something to do' so people don't feel awkward, and can feel a bit more relaxed, chatting inconsequentially about how nice the quiche is and drink tea.
OP, whatever you do will be perfect