Radicale VS wireguard-vyatta-ubnt

Maybe https://radicale.org/ could fit the bill, CalDav for as a calendar server and CardDav for contacts.

I now use CalDAV Synchronizer to sync Outlook to my Radicale CalDAV / CardDAV "server" (a Raspberry Pi), with DAVx running on our phones.

Also look at Baikal, in addtion to Radicale.

Setup: 1. Install a CalDev server on my home server (running Debian Linux) using maybe Radicale (https://radicale.org/) 2. Use the Linux version of ProtonMail Bridge on this server to set up IMAP to connect to this CalDev server 3. Configure filters to automatically forward event invites sent to my ProtonMail address to my CalDev server, decrypted by Bridge 4. Configure my CalDev server to use ProtonMail to send event invites, when I create new events and add invitees 5. Add this CalDev server to Fantastical, using the app on iOS and MacOS as my primary calendar

Caldav is what you are looking for. The other comments mention implementations of them and i can vouch for radicale pretty barebones but does its job

We are thinking of writing a guide to setting up a small Radicale instance. This could be hosted on a raspberry pi, or small NAS or something.

After trying a number of alternatives, I'm strongly recommending radicale.

I used this as a guide, but made some changes to it: https://github.com/Kozea/Radicale/issues/779

Joining serverless environments like AWS Lambda to a mesh network has traditionally been difficult because you can't directly access the network interfaces on the hosts that run your functions. The NetBird netstack mode addresses this by providing a simulated TUN device and a SOCKS5 proxy that targets that device. This allows your Lambda function to access other services in your NetBird network via the proxy.

NetBird simplifies Kubernetes access with its zero-configuration approach, leveraging WireGuard's simplicity and strength. It seamlessly integrates with various tools, offering transparency and high reliability as an open source solution.

WireGaurd

As for remote access, you will need another computer to install tailscale or wireguard vpn to access your local devices https://www.youtube.com/watch?v=AkKz7Vza1rw and the official docs for up to date advice https://www.wireguard.com/ this doesn't require much to run, you can use any old family computer or some old quad core 2nd-4th gen intel desktop for 30 bucks off facebook marketplace. You can also use that same computer to run klipper if you install proxmox and have two separate linux virtual machines.

Um modo mais avançado de se proteger é utilizando protocolos de VPN mais modernos, como o WireGuard. Muitos provedores de VPN oferecem suporte a este protocolo, que além de muito simples de usar e além do mais é open source.

here u find out how wireguard works https://www.wireguard.com/

WireGuard is a VPN protocol developed several years ago which is exremely fast, lightweight, and uses state-of-the art cryptography. Its performance blows legacy VPN's out of the water.

Try vanilla. It solved all my problems bar none.