Add Stellar Developer Meeting notes for 2026-06-18

meeting-notes/2026-06-18.mdx

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+---
+title: "2026-06-18"
+authors: kaankacar
+tags: [developer]
+---
+
+import YouTube from "@site/src/components/YouTube";
+
+<YouTube ID="9dfzsu5ChCM" />
+
+## A Doozy of a Week
+
+This week was a doozy — not just one exciting guest, but a pile of news and a stack of tools to use and maybe break. Before the guest, a quick ecosystem roundup. The big one: **v16 of the JavaScript SDK is live**. If you're building on the JS SDK, upgrade your codebase and read the release notes to see what changed. Ask in the Stellar Developers Discord if anything trips you up.
+
+Two more things worth your time. Our **Real World ZK hackathon** with onlyhacks is still running — 11 days left to submit, $10,000 in prizes. The brief is simple: build anything that uses zero knowledge and runs on Stellar — privacy pools, private payments, confidential tokens, identity and compliance proofs, provable computation, verifiable data. If it's ZK and it's on Stellar, it counts.
+
+And if your team is closer to launch, **SDF and CV Labs have opened the Stellar CV Labs Accelerator** — SDF's first EMEA-focused program. It's a 12-week remote-first accelerator with a two-week in-person boot camp in Cape Town, supporting 10 early-stage startups across DeFi, payments, and RWA in the ME region. Selected teams get technical support, tokenomics advisory, go-to-market guidance, mentor 1:1s, ecosystem perks, and up to **$150,000 in XLM** in initial development funding from SDF. Post-program, top teams are eligible for additional SDF grants and a joint IC review with CVVC's fund — up to another $150k per team for the top two. Applications are open until **July 3rd**.
+
+For context on why any of this matters: per the Electric Capital developer report, close to **1,800 builders** shipped on Stellar this week, and we had nearly 150 builders live on the call when we started (peaking past 470 by the end). There's a synergy here, and I hope you can feel it too.
+
+## Guest: XCCY — A Fixed-Rate Engine for DeFi
+
+This week's guest was **XCCY** (short for **cross-currency swaps**) — an on-chain interest rate engine that's integrating to Stellar. The pitch: lock in a fixed yield on stablecoins, borrow at a fixed rate for a known period, and hedge variable interest rates instead of guessing where yields will go. Their current platform already shows around $1M in liquidity and roughly $2M in 24-hour volume.
+
+**Dennis** (co-founder and CEO; background in math/CS, several DeFi protocols, and HFT trading) and **Dmitri** (CPO; a TradFi derivatives background) walked us through it. XCCY was accepted into **SCF's 41st cohort**, is deployed on EVM mainnets today, and started building on Stellar two weeks ago.
+
+### The Problem
+
+There's a huge amount of unhedged floating-rate exposure across DeFi. In TradFi this is solved with an **interest rate swap** — a derivative that lets you exchange a fixed, predefined rate for a floating rate tied to some source (Fed funds rate, or in DeFi a lending market's borrow/lend rate). XCCY brings that primitive on-chain, leaning into an RWA-looping narrative and fixed rates on Stellar — natural given the depth of RWAs and lending markets like Blend and YieldBlox on the network.
+
+### Three Primitives
+
+Dennis demoed the platform (live, on Stellar testnet, network errors and all) and the math behind it:
+
+1. **Oracle Hub** — XCCY uses two oracle types. **Reflector** (5-minute candles) for collateral pricing, and **RedStone** for some assets like RWAs. For rates they derive **APR oracles** by applying exponential-weighted-moving-average smoothing — because lending-market rates only update on trades, so without smoothing the rate can sit unchanged for long stretches.
+2. **vIMM** (virtual IMM) — an AMM-style engine, close to Uniswap v3 with liquidity ticks, but instead of trading token-vs-token it trades a **fixed rate against a variable rate** tied to an underlying (e.g. a Blend rate). Pools issue **fixed tokens** (representing a fixed ~1% APR factor) and **variable tokens** (whose growth tracks the underlying). It's a zero-sum game — the sum of LP and taker tokens is always zero, so when one side loses on a rate change, the counterparty earns it.
+3. **Collateral Engine** — handles LTVs, liquidation bands, and stages. Stable-vs-stable isolated pools can run very high LTV (~99%); portfolio exposure with volatile collateral needs more buffer. Crucially, because an interest rate swap's P&L is driven by _accrued_ value over time rather than instantaneous price spikes, the engine can support high leverage for shorter tenors using dynamic upper/lower "worst-case" bounds — more collateral for longer maturities, less for closer ones. Settlement happens automatically at maturity, much like options.
+
+### What's Next for XCCY
+
+Mainnet is several months out, gated mostly on audits given the complexity, with the Stellar testnet and SDK landing in a few weeks. The API already exists and is being ported to Stellar this month — and they explicitly want to adapt it for **AI agents**, so a strategy can be wired up with "one prompt or one skill." Cross-chain arbitrage across their existing EVM pools is on the roadmap too. Reach them on the Stellar Discord, Telegram, or X.
+
+It's a fitting guest for where Stellar is: nearly **$3 billion in RWAs** on the network today, and teams like XCCY are coming precisely because of the institutional and real-world-asset depth.
+
+## stellar-build: Your Whole Dev Journey in One Command
+
+The AI half of the meeting was a walkthrough of **stellar-build** (stellar.new) — the tool the DevRel team shipped last Friday and used at the Istanbul hackathon. It's a one-command installer that drops **42 skills** plus curated data on **700+ projects built on Stellar** and **9,000 projects** from Electric Capital's developer reports into your setup. Since Friday it's been installed about **101 times**.
+
+The idea: answer almost every question a builder would otherwise ask a mentor during a hackathon — _is this a good idea, has it been done on Stellar, can it be done on Stellar, who are my competitors_ — not just "how do I implement X." It's built on the **BMAD method**, so it's a hands-on, orchestrated journey rather than a one-shot app generator. You're the orchestrator; the AI personas and their data do the legwork while you say yes, no, or maybe.
+
+Those personas are the DevRel team rendered as agents: **Justin** (analyst), **Bri** (tech writer), **Nicole** (PM), **Kaan** (UX), **Tyler** (architect), and **Elliot** (senior dev) — spanning the idea, planning, solutioning, implementation, and launch phases. There's a **party mode** that brings everyone into the room at once, and a **stellar-help** router that re-orients you whenever you forget where you are.
+
+### Live Demo
+
+I drove it live for the ZK hackathon. Asked **Justin** what to build; he pulled my prior context (via the **mnemon** memory plugin), then loaded the **competitive-landscape** skill and went treasure hunting through both the curated catalog and the Electric Capital dump. He surfaced real neighbors — **Zarf Protocol** (an SCF 42 privacy-preserving token distribution with ZK private claims), **Sora Drop** (an open-source but non-private airdrop tool, ~$48k from SCF 28), and a stealth team porting the same primitive — making the point that the Merkle-claim mechanic is already being commoditized, so the opening is a sharp, specific application rather than yet another ZK toolkit.
+
+From there we routed into a **PR FAQ** validation (working-backwards stress test) with Justin, then pulled in **Tyler** to sketch the architecture with full context handed off cleanly — issuer contract, circuit spec, storage layout, interface signatures. Every persona ends its turn with concrete next steps, which matters: even the human versions of these people aren't always in the room.
+
+That's stellar-build — the entire DevRel team as agents on your screen. Grab it for this week's Real World ZK hackathon on DoraHacks, and I'll see you next week.

routes.txt

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