I lately started thinking about a calendar system and a bit experimenting.
Mainly I want a continuous calendar. Just a table of weeks. My thought is to tie calendar with e-mail (what a novel idea) and todo list. I would like to enter new events just writing down with some kind of simple language and auto-completion. I feel that most calendars have too much friction comparing to paper calendar.
Todos should jump to the next day until they are done or deadline is met.
I would like to tie it with e-mail so I could pin the e-mail to specific day or to a todo item as described in previous paragraph. It would be a calendar first and e-mail second.
I wanted at first have it running as a server on a tablet that I would stick to the fridge. It would only need a thin proxy, but thanks to Let's Encrypt it would run with end to end encryption. Also running SMTP server on a tablet. But it is a bit too complicated to do at first.
Check out org-mode. Handles todos, scheduling tasks, timers, you can link directly to a file or an email (not a copy, but a link emacs follows into your mail reader, such as mu4e/gnus/wanderlust, for that specific email). It will auto generate an agenda from multiple todo files spread across your filesystem.
org-mode is great and I use it to write longer, unorganized sorts of things. It was amazing to have a place I could keep track of my time to the minute, extend if I wanted to do basically anything, etc. I missed the visualized nature, however, as I found the visual feedback to be imperative to my taste.
calfw can integrate with org. I mostly use the integration as a way point for gcal sync, but even if the integration isn't exactly what you want, adding a new source to calfw is very easy
Check out https://moo.do. It's a to-do list, outliner, calendar, and email all in one. It sounds like it would work well for what you're looking for. If not, let me know and I'll try to make it better for your use case.
One specific use case that I have in mind is to stick a tablet with a calendar to the fridge. It should be a shared calendar between me and my wife. I'm wondering how can I achieve that.
From what I see I could create a group calendar in Google Calendar. Then probably me and my wife could have separate moo.do accounts and put things on this group calendar. On our phones it would be easy. But question is how to deal with it on a shared tablet.
Or we could have one account with all our e-mail accounts and share a calendar this way.
One thing that is beyond scope of moo.do is to have an alias per contact. Maybe not for all contacts, but for most services. I know I can kinda emulate this with gmail's address+whatever@gmail.com. There are few problems with it. '+' sign is considered invalid by dumber services that I may have no choice of avoiding. Also it requires exposing main address - removing of postfix is easy. I could dedicate account for this and never use the address without a postfix, tagging anything that came to the main address as a spam.
So it can work, but is a bit tedious, because it is not automated. I would like to have a separate pool for addresses. I then can create a new address/"slot" for a contact. I could use it for some service and if I would ever resign from this service I would remove the address. And if I would ever receive spam on one of the assigned addresses I would know which service is not trustworthy. That would also make it easier to prepare filters.
Mainly I want a continuous calendar. Just a table of weeks. My thought is to tie calendar with e-mail (what a novel idea) and todo list. I would like to enter new events just writing down with some kind of simple language and auto-completion. I feel that most calendars have too much friction comparing to paper calendar.
Todos should jump to the next day until they are done or deadline is met.
I would like to tie it with e-mail so I could pin the e-mail to specific day or to a todo item as described in previous paragraph. It would be a calendar first and e-mail second.
I wanted at first have it running as a server on a tablet that I would stick to the fridge. It would only need a thin proxy, but thanks to Let's Encrypt it would run with end to end encryption. Also running SMTP server on a tablet. But it is a bit too complicated to do at first.