Your Raspberry Pi can join The Tor Project network that helps Russians read censored news sites, including Twitter.
These are all the commands necessary to spin up a Snowflake proxy that gives Tor users a way around government attempts to block access.
You can also run a Snowflake proxy from your web browser with Firefox or Chrome. Standing it up on your Raspberry Pi is a way to support the system 24 hours a day. And, unlike other Tor server setups, it doesn't require a static IP address.