Nothing a notebook and a pencil can't fix, of course, but an app is more fun.
I don't think it's laziness, I think it's an excuse to do a personal hobby project. Makes perfect sense to me.
echo <input id=kmbefore><input id=kmafter onleave='alert( (kmafter.value - kmbefore.value) * priceperlitterperkm )'>
> index.html to make it available to anyone, Worldwide, for free!
For the fancy version I'd make priceperlitterperkm URL parameter to make it work not just for my area. But that's like an entire additional like of code.
My point being... I'd make a Web page, on app, no deployment, no tracking.
ssh homeserver 'echo hi >> /var/www/self-published/index.html' and voila. I'll probably share my gist this way from the CLI.
ssh homeserver "echo '$(ls)' >> /var/www/self-published/index.html" if I want to run a command locally first, not on homeserver (notice the " vs ').
echo <input id=kmbefore><input id=kmafter onleave='alert( (kmafter.value - kmbefore.value) * priceperlitterperkm )'>
> index.html to make it available to anyone, Worldwide, for free!
* a server running 24/7 on the internet, paid for each month
* purchased, setup and keep paying every year a domain name
* configured a web server in that server, ideally with automated SSL certificate issue and renewal
Also, alerts are terrible UX. At least put some effort into your example.