Colosseum Codex: State of Solana, Hermis SDK, Harmonic Block Builder
Messari State Of Solana Q3 2025 Report, Hermis Headless SDK, Harmonic Block Builder
Here's what's featured in this week's issue:
- Messari Releases State Of Solana Q3 2025 Report
- Hermis Releases Framework-Agnostic Wallet SDK
- Harmonic Introduces a New Open Block Building System
📊 State of Solana
Messari's State of Solana Q3 report highlights ecosystem growth across DeFi, real-world assets, and consumer infrastructure, even as user activity slowed.
The so-called "Launchpad Wars" intensified, with Bonk temporarily overtaking PumpFun before the latter regained dominance. In July, PumpFun raised $600M through the PUMP ICO, giving it a $4B FDV at launch.
On the infra side, Anza proposed Alpenglow, a new consensus protocol targeting sub-150ms finality. Firedancer adoption increased, with 17% of stake running Frankendancer variants by quarter’s end. Jito’s Block Assembly Marketplace and MagicBlock’s TEE-secured rollups also went live.
The Solana Mobile Seeker phone shipped in August, enabling mobile-native app experiences. Games like Addicted and Parallel Colony explored real-time monetization and AI-based gameplay.
Solana’s Q3 saw fewer users but stronger foundations. More details are available in the full report.
👛 Hermis Wallet Adapter
As the Solana ecosystem transitions from web3.js to the new Solana Kit SDK, developers face a choice: rewrite core logic for Kit or stay on legacy code.
Hermis v2 addresses this by offering a unified wallet adapter that supports both architectures with no breaking changes. The API remains consistent, letting developers migrate at their own pace. signTransaction() and other critical methods work seamlessly across both SDKs.
Hermis is framework-agnostic and headless, offering full support for React, Vue, and vanilla JS. It includes type-safe utilities like createKitTransaction and createTransactionSigner, network and wallet auto-detection, Anchor support, and robust error handling.
🎼 Harmonic Block Builder
Harmonic has introduced an open block building system for Solana aimed at improving validator revenue, decentralization, and network efficiency. Instead of relying on a single block builder, Harmonic aggregates proposals from multiple independent builders and lets validators select the best block each slot based on customizable policies.
This means more reliable and faster inclusion for transactions, especially important for latency-sensitive apps like perps DEXs and MEV strategies.
Harmonic supports customizable validator policies, so builders can work with validators who prioritize inclusion fairness, protocol-specific flows, or clean block content.
The system is designed to be compatible with Solana’s existing block builders (Jito, BAM, and Temporal), supports programmable enforcement, and aligns with upcoming features like ACE.
Harmonic is currently in closed beta. Projects interested in working with Harmonic can apply to join the beta.
Harmonic: Open block building infrastructure for Solana
⚡ Quick Hits
Introducing Hush, a privacy-first Solana wallet - @hush_wallet
A Developer’s Guide to Audit Readiness - Exo
x402 Protocol Explained: Inside the HTTP's Native Payment Layer - QuickNode
Improve your app's UX with Range's Stablecoin Explorer - @range_org
ORE app is now available for Seeker users on the Solana Mobile dApp store - @OREsupply
Audits, Exploits, and Security on Solana: A Non-Definitive Guide - @sannykimchi
⚙️ Tools & Resources
renderers-js-web3js provides a Codama renderer for Web3.js to generate type-safe client code for Solana programs.
s8004 is a proof-of-concept onchain agent registry and reputation system for Solana, inspired by ERC-8004 that implements a decentralized way to register AI agents and build reputation through an escrow-based rating system.
stakefy-x402 is an x402 payment facilitator for Solana with 0.5% fees, USDC payments, and simple SDK integration.
💀 RIP
Step Group announced it will sunset the Step Dashboard, APIs, and mobile app to focus resources on Remora and SolanaFloor, which have shown clearer product-market fit. Allstars Academy will continue, while the future of Crossroads is under review.
👩🔧 Get Hired
- Solflare is hiring a Backend Developer
- Wormhole is hiring a Frontend Engineering Lead and Backend Engineering Lead
- QuickNode is hiring a Senior Infrastructure Engineer, Core Systems
- Ergonia is hiring a Senior Solana Engineer
- Jito is hiring a Director of Engineering
🎧 Listen to This
The Latest Development
In this episode of The Latest Development, Seedplex founders Treggs and spacemandev explore how they're rethinking startup fundraising by enabling onchain access to private equity, the gap between idealistic crypto narratives and operational realities, how tokenized equity can flow into decentralized markets, and the implications for both angel and VC investors.
Seedplex: Venture as a Service
Follow @mikehale on X or Warpcast!
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