1. SIGHASH_ANYPREVOUT
2. Privacy improvements like Trampoline routing
3. I don't know enough about NOSTR to have an opinion yet

1. Stealth addresses. Silent payments is working on this. Essential to have static addresses that can’t be censored like in the truckers protest.
2. Wallet API. We have plenty of custodial clients but not a single api-fied one. We need the Stripe for Lightning where devs don’t have to manage liquidity/channels. Lightspark is working on this but it is super expensive.
3. Nostr Reddit. For the love of god somebody please buy the “no.st” domain so we can have forum discussions ala Reddit style http://no.st/r/

1. OP_vault
2. Eltoo
3. nostr-market (is about to be launched)

1. Better guides on how to live a bitcoin life.
2. Ebay like clone that uses the lightning network to pay for things.
3. Nostr needs critical mass to be a good social network.

1. More collaborative transactions in all apps that touch base layer - opt-out privacy
2. More social features on top of Lightning - joint savings or competitive bounty wallets (think fantasy sports or fitness leaderboards). Also hobbyist liquidity bootstrap solutions.
3. Private long-form unlockable content (for when substack inevitably overreaches)

1. Bitcoin (base layer): Privacy is still an after thought in most bitcoin wallets. Making UTXO management possible and easier to understand is a big hurdle it seems.
2. Lightning: Failing faster. Failed routes are still a problem from time to time and that friction is something that will turn off new users
3. Nostr: Client performance. All the apps are slow and use a LOT of network bandwidth. A lot of room for performance improvements and believe me when the masses come they will complain about this.

1. Bitcoin

• Fungibility, which is, a property of money that Bitcoin does not have.

2. Lightning

1. An easy and standard way of integrating lightning payments everywhere (games, stores, websites, social media, ...)
2. Non-custodial wallets were you don't need to worry with channel capacity

1. Privacy
2. Privacy
3. Performance

1. transaction time/throughput
2. cost of sovereign operation - "force closes"
3. nostr key delegation

1. Prove itself is the better way of storing value for more people.
2. Information(messages，vpn, etc) routing on top of Lightning. And more merchant support for Lightning payments.
3. The ability to penitrate network blockade is very important for Nostr.

1. Better seed phrase management
2. Something that let's me use my email address as my LN address. Darth posted a write up on this, and I bookmarked it, but honestly, I'd jump at something with a tenth of the steps.
3. Early days still and I know people are working on quite a bit, so I'll wait for now.

1. CISA, pay via coinjoin tools
2. Option to combine automatically some custodial solutions and being safe agains their potential attack. → Have a safe option to open a LN wallet without costs
3. Account migration

1. At this point, Bitcoin development should exclusively be focused on supporting L2s, with generalized and theoretically sound extensions, only as needed and as ready. This in turn supports all customers.
2. More L3s.
3. Clients I've used seem functionally broken. Of the clients I haven't used, many aren't supported on any of my devices. (Assuming here that my personal problem is the biggest problem.)

1. Bitcoin:

• On ramps. More bitcoin vending on the streets are needed.

2. Lightning:

• On ramps as well on the streets.
• More guides and solutions for family custodial wallets like LNBank on BTCPay or Lndconnect on Lnbits. That way family and friends can have an easy to setup lightning wallet but without losing custody (trusting in my node of course). Today that wallet can be Blue or Zeus but they are fairly complex. With a simple one purpose plug and play wallet for that use case, that will help proper lightning adoption (instead of just using WOS or Muun).

3. Nostr:

• Better relays
• Better Privacy for DMs (everyone can check who I have been sending DMs)
• Not so much complexity on NIPs. When people talk about NIPx feature, they assume you know that NIP, meaning you checked the repo. That might not be the case for many. For Nostr to advance, features should get to the people in an easier to understand message.