Harmonic Labs

Harmonic Laboratories is a pioneering technology company at the forefront of blockchain and decentralized applications development. Specializing in building innovative solutions on the Cardano blockchain.

We are experimenting with runnable examples on the pebble website 👨‍💻 the code you see is not typescript, is a smart contract programming language for Cardano yes, even with for loops and mutable variables 🙈 Pebble is included in the HLabs budget proposal for 2026 👀

A lot of people in Cardano don't appreciate the open source infrastructure & tools that makes this ecosystem actually usable for new developers. So here's my perspective after shipping a full SAP-Cardano integration over the last few months. With my Catalyst proposal I wanted to use the most advanced, modern stack available for connecting SAP to Cardano. Native, fast, secure. On the SAP side, it was clear that TS was really the only option that made sense. But on Cardano? Do i had to learn Haskell first? No. Because people in this ecosystem built tools and libraries that let developers from other ecosystems work with Cardano without starting from zero. Since I went with TypeScript, the biggest shoutout goes to @MicheleHarmonic and the entire @hlabs_tech stack with plu-ts, cardano-ledger-ts, and especially Buildooor as a native TS transaction builder. Not sure what I would have done without it. 👷 Buildooor is significantly easier to use than CSL, by the way. If you've worked with both, you know. @blockfrost_io and Koios for Cardano APIs. Reliable, well-documented, and they just work. @blinklabs_io for a dockerized Cardano CLI that I could just pull and use for signing tests. No local node setup, no hours of syncing. Just works. @_KtorZ_ for Ogmios and its TypeScript client for a live WebSocket connection directly against a Cardano node. And these are exactly the tools & areas we need to keep developing and funding if we want Cardano to be useful and play a role in the future. Not more marketing. Not more governance drama. Better developer tooling, node diversity and infrastructure. And yes. Now is exactly the right time. Thank you for your attention.

At the cost of stating the obvious Harmonic Laboratories does not have and never will have a token Anyone that is releasing a token with our name is trying to scam you Stay safe

At HLabs we are planning to submit our budget proposal for 2026 in about 2-3 weeks from now Before then, I'd love for the community to share their feedback so that we can reflect it in the proposal Below you find the current draft 👇 Your support is very much appreciated 🙏

How HLabs be moving around the Messari report 😭

btw gerolamo now comes as an executable It doesn't do much, follows the chain and offers a minibf (subset of blockfrost) REST API interface but if you want to play with it you can github.com/HarmonicLabs/g…

Everyday I see a coordinated effort to move away from the permissionless and trustless principles, from the tooling and infrastructure layer to the application layer Everyday I see excuses and justification to rebuild the same financial model where a few entities do have the control over you It is not enough to have a permissionless L1 but centralized applications on top This is why we do what we do at Hlabs Starting from the very bottom with Gerolamo up to applications like @gravitycardano First principles cannot be compromised with at any level

@IOHK_Charles love this vision! @hlabs_tech could help on almost all fronts On the DeFi side @gravitycardano will be source-available and can push the entire DeFi ecosystem forward with its patterns designed specifically for eUTxO, which also means we can get apps that take advantage of improvements like Leios without the tradeoffs a L2 like hydra might introduce On the DevExp side @pebble_lang could be as helpful as Aiken as soon as the tooling for the language improves And with Gerolamo we are involved on the infrastructure side from the bottom up Just letting you know we are right behind you ready to help

EXCUSE ME ???

Open sourcing `cddl-tools` by @hlabs_tech This tool could be useful to quickly test against the cddl spec of each era Here is a demo on how to install and use it Find the repo below 👇

Now that Cardano is safu I can go back to my scheduled ranting: I've been talking a lot about batchers, decentralization, trust and permission (or lack of them), but I’ve also been quietly building to fix it for the past 2 years 👇 🧵

If you are looking for a pool that is already on 10.5.3 I would suggest BKN (@BakonPool) FULL DISCLOSURE: they are working with us at @hlabs_tech , but the pool is their own The pool is under a million but very well maintained and bare metal, you'll help the network decentralization

@DjediMindTrick @gravitycardano Hi 👋

@gravitycardano Who’s the team?

Introducing Gravity, the first real Cardano DEX.

How building on patterns that nobody even dares to explore feels like

If you want to deep dive on what makes @pebble_lang this good In the first comment you find my presentation of the compiler for the UPLC 2025 event ⚠️WARNING: bold statements are present, viewer discretion is advised ⚠️

Performance comparison on the "naive fibonacci" benchmark in the UPLC-CAPE repo Pebble (left) Aiken (center) Plutarch (right)

What?👀

Been so busy client-diversity-maxxing lately that I forgor to post about Catalyst 💀 Here are the 2 projects by @hlabs_tech Cddl-tools will greatly facilitate the life of every library implementor on Cardano (hopefully it saves me some hours on PPViewHashesDontMatch next hardfork 😭) Buildooor <> UTxO RPC is for integrating the standard to be plug-and-play in buildooor Both buildooor and the RPC API are being increasingly adopted This will facilitate the life of many app Devs Thank you for your attention on this matter!