[POLL] 2FA for cold wallets — BTC first, LTC/DOGE & other UTXO coins later

Hi everyone,

I'm thinking about building a Windows desktop app and want honest feedback before spending time on it.

The idea

A tool for people who keep coins on a cold wallet (offline storage). Before any transaction can be sent, you'd need to confirm via 2FA — same style as Google Authenticator. No code → no send.

Cold storage protects your keys, but if someone gets access to your PC, they might still try to push a transaction through without a second factor. This adds that extra lock.

Scope

1.Bitcoin first as the pilot
2.Same concept for other UTXO-based coins later — Litecoin, Dogecoin, and similar, based on demand
3.Works alongside your existing wallet setup — not replacing it, not custodial
4.Simple guided setup on first launch
5.Transaction details shown before you enter 2FA (amount, address, fee)

You use cold / offline storage
You want 2FA before every send
You hold BTC, LTC, DOGE,etc, or plan to
Not a new coin, not an exchange — just a security layer. If the idea is dumb or already solved better elsewhere, tell me straight.

Poll (reply with numbers):

Interested? — Yes / Probably / Neutral / No
How relevant is this for you right now? — Very / Somewhat / Haven't thought about it / Not relevant
Do you use cold storage? — Yes / No / Planning to
Would 2FA before every cold-wallet send help you? — Yes / Nice to have / Don't need it
Would you use this if setup is straightforward? — Yes / Probably / Unsure / No
Which coins & wallets do you use? — (free text: BTC/LTC/DOGE, Core, Electrum, etc.)
Thanks — trying to see if anyone actually wants this before we build.