# Online Discussions

## [LND Developer Community](https://lightningcommunity.slack.com/join/shared_invite/zt-1y3eup1mc-jDLCarR~hOwI6X4un5Yz_g#/shared-invite/email)

The LND Overview and Developer Guide aims to provide *just* enough information about LND to enable readers to build applications. It starts with a conceptual review of the Lightning Network, before jumping into the important aspects of working specifically with LND.

[Slack Channel](https://lightningcommunity.slack.com/join/shared_invite/zt-1y3eup1mc-jDLCarR~hOwI6X4un5Yz_g#/shared-invite/email) - [Overview and Developer Guide](https://dev.lightning.community/overview/)

## [LND Developer Community](https://lightningcommunity.slack.com/join/shared_invite/zt-1y3eup1mc-jDLCarR~hOwI6X4un5Yz_g#/shared-invite/email)

The LND Overview and Developer Guide aims to provide *just* enough information about LND to enable readers to build applications. It starts with a conceptual review of the Lightning Network, before jumping into the important aspects of working specifically with LND.

[Slack Channel](https://lightningcommunity.slack.com/join/shared_invite/zt-1y3eup1mc-jDLCarR~hOwI6X4un5Yz_g#/shared-invite/email) - [Overview and Developer Guide](https://dev.lightning.community/overview/)

## Bitcoin Design

The Bitcoin Design Community [Discord](https://discord.gg/K7aQ5PErht) is an open space to discuss and explore everything bitcoin and design. Open standards are part of our foundation, so all of our work can also be found on [Github](https://github.com/BitcoinDesign).

Everyone is welcome to join and [participate](https://bitcoin.design/contribute). You can also follow along via our [newsletter](https://bitcoin.design/newsletter), [calendar](https://bitcoin.design/calendar), [social media](https://bitcoin.design/social-media), [BitcoinTV](https://bitcointv.com/a/bitcoin_design/video-channels) & [YouTube](https://www.youtube.com/c/BitcoinDesign).

[Join on Discord](https://discord.gg/K7aQ5PErht)

{% embed url="<https://bitcoin.design/?utm_source=gitbook&utm_medium=iframely>" %}

## Bitcoin Dev Kit (BDK)

Designed from the ground up to be easily customized to your application needs: blockchain backends, databases, signers, coin selection, key management and more.

[Join Discord](https://discord.gg/dstn4dQ)

{% embed url="<https://bitcoindevkit.org/>" %}

## Bitcoin Product Community

The Bitcoin Product Community helps drive high-impact FOSS and commercial projects within the bitcoin ecosystem by creating a space for people to network, share ideas, seek feedback, and develop skills.

We believe this kind of collaboration can lead to greater talent recruitment, resource allocation, and fundraising efforts across the ecosystem. Ultimately, we want to see bitcoin cross the chasm (i.e. reach the masses) and become the best kind of money.

If you're looking to get involved with a bitcoin project and aren't sure where to start, join us on [**Discord**](https://discord.gg/Ztvwn8fycA) and find our work on [**GitHub**](https://github.com/Bitcoin-Product-Community).

From there, you can help discover, define, and prioritize problems for the community to tackle, get involved in a project, and join our [**bi-weekly community calls**](https://meet.jit.si/ComprehensiveSpecialistsRideStrangely).

{% embed url="<https://bitcoin-product.org/>" %}

## Bitcoin Stack Exchange

Bitcoin Stack Exchange is a question and answer site for Bitcoin crypto-currency enthusiasts. It only takes a minute to sign up.

{% embed url="<https://bitcoin.stackexchange.com/>" %}

## Bitshala - Bitcoin Study Cohort

Learning Bitcoin alone can be a daunting journey, join our cohort and find your tribe. Whether from India, SEA, or outside, cohorts are the best way to discover other bitcoiners with similar hunger, curiosity, physical location, and technical acumen.

{% embed url="<https://discord.com/invite/STeQFVEWf9/>" %}

## Core Lightning Community

Whether you're a developer, node runner, or just interested in Lightning tech, this is the place to connect and have meaningful conversations. Ask a burning question, discuss latest developments, or share your knowledge and insights. The floor is yours.

{% embed url="<https://community.corelightning.org/home>" %}

## Delving Bitcoin

"A place to dig deep into Bitcoin."

{% embed url="<https://delvingbitcoin.org>" %}

## Fedimint

A modular open source protocol to custody and transact bitcoin in a community context, built on a strong foundation of privacy. An open framework to deliver best practice federated applications and second party custody for friends, family and communities.

[Join Discord](https://chat.fedimint.org/)

{% embed url="<https://fedimint.org/>" %}

## Lightning Dev Kit (LDK)

Moving forward members in the community should aim to exclusively post new stuff to Discord, while the Slack dies down over the coming weeks/months before officially closing. We believe semi-anonymous participation is an important feature for whatever chat platform we use. A few of the community access Discord via a Matrix bridge that seems to work well. You can join that [here](https://matrix.to/#/#ldk-discord:bitcoin.ninja).

Click [HERE](https://github.com/orgs/lightningdevkit/discussions/categories/announcements) for GitHub

Click this [invite](https://discord.gg/5AcknnMfBw) to join the Discord.

## Liquid community on Build On L2

Builders from around the world are building awesome things on Bitcoin's second layer. This community is the home for all L2 Builders to gather and help one another build successful products on Liquid. More than content and resources, this is a place to take your skills to the next level by tapping into what others have already figured out. Want to know the best way to begin your journey? You have reached the right place.

{% embed url="<https://community.liquid.net/home>" %}

## Other Online Discussions

[**bitcoin-core-dev IRC (Libera Webchat)**](https://web.libera.chat/#bitcoin-core-dev)

[**Bitcoin-dev Mailing List**](https://lists.linuxfoundation.org/pipermail/bitcoin-dev/)

[**Lightning Network Discord**](https://discordapp.com/invite/sm2rfS7)

[**Lightning-dev Mailing List**](https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev)

[**Lightning-dev Libera**](https://web.libera.chat/#lightning-dev)

[**The Lightning-dev Mailing List**](https://lists.linuxfoundation.org/pipermail/lightning-dev/)

[**The Development and theory of Discreet Log Contracts (dlc-dev) Mailing List**](https://mailmanlists.org/pipermail/dlc-dev/)

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## PlebDevs Discord

A scrappy group of plebdevs focused on Bitcoin/Lightning app development. Level up together!

{% embed url="<https://discord.gg/MqwvXfTBwt>" %}

## Stratum V2

Stratum V2 is the next generation protocol for pooled mining. It increases security, makes data transfers more efficient, and reduces mining infrastructure requirements. It also introduces three new sub-protocols that let miners select transaction sets and improve decentralization.

[Join Discord](https://discord.gg/fsEW23wFYs)

{% embed url="<https://stratumprotocol.org/>" %}