Desarrollador Backend y Cofundador de Trustless Work
Joined June 2024
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- Following60
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I have been building Sierpe in the open for two months: a self-hosted #Stellar indexer, 21 releases so far. It now has its own home at @SierpeProject. Here is where it stands. cc @StellarOrg
Stellar RPCs forget after about 7 days. Sierpe does not.
It is a self-hosted indexer: register a contract and it backfills the complete history into your own Postgres, behind an honest REST API.
21 releases since August. Here is where it stands:
ALT Timeline from genesis to the network tip. A long band labeled History Archives, replayed through captive core, covers almost all of it; a short band at the tip is labeled RPC, about 7 days. An arrow shows the backfill walking backwards from the day a contract is registered. Caption: before writing a healed ledger, the replay must match the RPC byte for byte.
caleb.sh retweeted
Excited to see @in_reflector recognized with the i³ Interoperability Award!
Huge thanks to everyone who voted for this incredible project and continues to support it!
Interoperability: bridging Stellar to the wider world.
@in_reflector brings decentralized price feeds to Stellar smart contracts, secured by a consensus of ecosystem organizations including Script3, CreitTech, PublicNode, and StellarExpert.
Awarded 100,000 XLM
caleb.sh retweeted
Neko was awarded by the Stellar Community Fund #45 🚀
Next thing we're building is Neko Mobile: RWAs on @StellarOrg, simple for LatAm savers.
caleb.sh retweeted
Trustless Work V2 is live in beta on Stellar Testnet!
- Multi-party roles
- Quorum approvals
- Better disputes
- Batch operations.
New contracts. New Core API. React + JS SDKs. New Indexer!
Get an API key in the BackOffice, try the Lab, then build with the SDK or API.
This is a beta. We want you to break it.
Learn More: 👇
trustlesswork.com/escrow-tim…
caleb.sh retweeted
🇲🇽 Código Alebrije just kicked off
180+ builders in Mexico City building the future of blockchain
Genesis track for new projects, Scale track to level up existing ones
In 48 hours, new startups will be born, let’s @BuildOnStellar 🚀
caleb.sh retweeted
Just published the Stellar Community Fund 2025 Impact Report: 154 projects awarded, 82 mainnet launches, $70M in external funding raised by SCF alumni.
So proud of what the Stellar ecosystem, community, and our @StellarOrg team built together this year! ✨🤩
medium.com/stellar-community…
caleb.sh retweeted
Building a Stellar Explorer requires a solid data ingestion pipeline to read ledger data and index historical transactions.
This 3 minute video explains the three indexer modes built with the Stellar Go SDK:
• Live
• RPC Backfill
• S3 Backfill
⚡ youtu.be/zye1nu8xRd8
caleb.sh retweeted
Small recap from yesterday
1. @zkCaleb_dev from @TrustlessWork helped us with escrow related questions.
2. @TrustlessWork with Go to Market strategies at the #Impacta Bootcamp
Thank you both.
@TheBAFNetwork @StarMaker_LATAM
Let’s keep on building
🐉
caleb.sh retweeted
Wallets are created USDC-ready and can swap XLM → USDC immediately after creation.
Now with our SDK, you have all this in one place.
stellar.expert/explorer/test…
npmjs.com/package/@galaxy-kj…
@StellarOrg @BuildOnStellar @TheBAFNetwork
caleb.sh retweeted
Participar en el #ImpactaBootcamp está siendo un proceso intenso y muy valioso. Agradecido con todos los que han aportado sus valiosos conocimentos y tiempo para enseñarnos @TrustlessWork #GretchenHutt @zkCaleb_dev y muchos más. @TheBAFNetwork @StarMaker_LATAM 🚀🚀
caleb.sh retweeted
Week 2 of the Impacta Bootcamp 🚀
What amazing classes we had! It has been intense but very rewarding. My biggest takeaway: radical collaboration. Here, knowledge isn’t kept to yourself, it’s shared
I'm excited about what's next.
@BAF_Web3 @TrustlessWork
#ImpactaBootcamp
caleb.sh retweeted
Dame la clase mas técnica que tengas ....
Exito en x2 😂💫@TrustlessWork @TheBAFNetwork
#ImpactaBootcamp #BuildInPublic
caleb.sh retweeted
Class 2 of @TrustlessWork Impacta Bootcamp done! 🚀 Deployed a smart contract on @StellarOrg using Postman, signed XDR transactions & explored Soroban + Node.js code. Web3 hits different hands-on 😎 @TheBAFNetwork @StarMaker_LATAM #Stellar #Soroban #ImpactaBootcamp
caleb.sh retweeted
Aprendiendo mucho en el IMPACTA Bootcamp de @TheBAFNetwork!
Esta semana empezamos con desarrollo, y aprendimos más sobre smart contracts y deployarlos. PD: el API de @TrustlessWork está brutal 🤯
Super interesante, vayamos por más 💪
caleb.sh retweeted
😊 Un día muy productivo , seguimos dandola toda en el bootcamp de @TheBAFNetwork y @StarMaker_LATAM construyendo @PayKapi, tremenda clase la de @zkCaleb_dev de @TrustlessWork mi perfil no es técnico pero vamos aprendiendo más sobre
Back y arquitectura de @BuildOnStellar 💪💪
💪 Seguimos avanzando con #Kapi, reunión con el team para definir identidad, branding y estructurar la arquitectura del producto . @19_Joann_ @AnthonyFuentesl
🤓Seguido de la clase 2 de la semana 2 sobre backend con @zkCaleb_dev @TrustlessWork
@TheBAFNetwork @StarMaker_LATAM
🚀 Nuevo repo: ImpactaBootcamp-ExampleRepos
Stack completo para interactuar con Stellar/Soroban:
- Smart contract básico en Rust (Soroban SDK)
- Backend en Express.js consumiendo el contrato vía contractId
github.com/zkCaleb-dev/Impac…
@BuildOnStellar @StarMaker_LATAM @StellarOrg
caleb.sh retweeted
Estamos haciendo historia 🌎
+330 builders están participando de Impacta Bootcamp construyendo +85 proyectos en Stellar.
Dentro de 4 semanas habrán nuevos proyectos en testnet listos para seguir creciendo en ecosistema @StellarOrg en LATAM.
Let’s @BuildOnStellar 🌟
Just published a Golang implementation using RPCLedgerBackend from go-stellar-sdk 🚀
RPCLedgerBackend is part of Stellar's ingest library and connects to RPC providers (or your own instance).
It's the most cost-effective option compared to BufferedStorage or Captive Core.
Why RPCLedgerBackend?
- Most economical & accessible option for most devs
- Perfect for real-time ledger data (hot data)
- Retention window ~7 days or less
- No need to run a full Stellar Core instance
Not for historical data deep dives, but ideal for recent info.
Check out the implementation here ⬇️
github.com/zkCaleb-dev/impl-…
Clean code showing how to integrate it efficiently.
@BuildOnStellar #Golang #Stellar #Backend
