Adds LQWD case study (#290)

* Adds LQWD case study

Author: ConorOkus

docs/_blog/lqwd-liquidity-provider-get-liquidity-when-you-need-it.md

@@ -0,0 +1,49 @@
+---
+title: "LQWD Liquidity Provider: Get Liquidity When You Need It"
+description: "Learn how LQWD built a custom LSP"
+date: "2025-01-14"
+authors:
+  - Aziz Pulatov
+tags:
+  - Case-Studies
+---
+
+The rapid growth of the Lightning Network has created unprecedented demand for liquidity. Traditionally, receiving payments on the Lightning Network required pre-established channels which posed barriers to new users and hindered scalability. With the introduction of [LSPS2 / bLIP-52](https://github.com/lightning/blips/blob/master/blip-0052.md) and its Just-In-Time (JIT) channel negotiation capabilities, the Lightning Network can now provide liquidity exactly when needed, improving both accessibility and efficiency. By leveraging [LDK Node](https://lightningdevkit.org/blog/announcing-ldk-node/) (a higher-level wrapper of LDK) and the [Lightning Liquidity crate](https://github.com/lightningdevkit/rust-lightning/tree/main/lightning-liquidity)—both Rust-based implementations—we developed a specialized LSP Node [(LQwD)](https://lqwdtech.com/). This node enables real-time liquidity provisioning by dynamically creating channels, ensuring payments can be received without prior investments in channel capacity.
+
+# Challenges Before LSPS2 / bLIP-52
+
+Before the advent of LSPS2 / bLIP-52, receiving payments on the Lightning Network was fraught with limitations. Users were required to have pre-established channels, creating significant friction during the onboarding process and hindering adoption.
+
+Liquidity allocation was inefficient: static channels often resulted in unused capacity, tying up valuable funds that could have been better utilized elsewhere. Furthermore, scaling liquidity across the network required substantial investment and extensive pre-planning, making it
+challenging to achieve the flexibility and responsiveness required for a growing user base.
+
+![LQWD architecture](../assets/lqwd_lsp_node.png)
+
+# Why LSPS2 / bLIP-52 with LDK Node and Lightning Liquidity?
+
+LSPS2 / bLIP-52, integrated with LDK Node and the Lightning Liquidity crate, offers a transformative solution to these challenges. Its dynamic liquidity management enables channels to be created on demand, perfectly aligning with real-time payment requirements and eliminating the need for
+pre-established liquidity.
+
+The flexible and modular design of LDK Node, built on Rust and enhanced by the Lightning Liquidity crate, allows for the development of a highly customized and efficient LSP Node tailored to meet dynamic liquidity needs.
+
+# Building the LSP Node (LQwD)
+
+The integration of LDK and Lightning Liquidity allowed us to create a streamlined and algorithmically driven LSP Node capable of managing liquidity requests dynamically.
+
+The process begins when a client initiates a liquidity request by interacting with the LSP Node. In response, the LSP Node generates a Short Channel ID (SCID), accompanied by routing information and timeout parameters, and sends these details back to the client.
+
+Following this, the client prepares an invoice that embeds the SCID and the LSP Node ID as route hints, ensuring that the payment route is well-defined. This invoice is then shared with the payer.
+
+When the payment is received with the SCID, the LSP Node takes over to execute a Just-In-Time (JIT) channel creation. A zero-confirmation channel is opened to the client, facilitating the payment transfer. The LSP Node seamlessly forwards the payment to the client while deducting
+the applicable channel fees, ensuring both efficiency and reliability throughout the process
+
+# Immediate Benefits
+
+The implementation of LSPS2 / bLIP-52 brings significant advantages to liquidity management on the Lightning Network. Clients can now receive funds without the need for pre-established channels, which greatly reduces friction during the onboarding process. The dynamic nature of channel
+creation eliminates the necessity for upfront investments in liquidity, making the solution both scalable and cost-effective. Furthermore, payment processing is optimized, with Just-In-Timechannels ensuring faster and more reliable transactions, enhancing the overall user experience.
+
+# Conclusion
+
+The LSP Liquidity Provider (LQwD), built on LDK Node and the Lightning Liquidity crate, showcases how LSPS2 / bLIP-52 can revolutionize liquidity management on the Lightning Network. By offering JIT channels, this solution simplifies onboarding, reduces costs, and aligns network resources with real-time needs, paving the way for a more accessible and scalable Lightning Network.
+
+For more information or collaboration opportunities, visit the LQwD [website](https://lqwdtech.com/).