Open source developer

Jørgen S. Notland

Oslo

Jørgen S. Notland is an open source developer in Oslo. He works on the Nexa blockchain with Bitcoin Unlimited. His public GitHub profile lists that affiliation as “Bitcoin Unlimited / Nexa”. His talks and articles introduce Nexa to developers building products on it.

Separate site

Talks, articles, and org charts

Decks, articles, papers, and Nexa team pages live on their own site, published from the presentations repository.

Open jqrgen.com/presentations

News site

Nordic Crypto

Bitcoin, blockchain and crypto news from Norway, Sweden, Denmark, Finland and Iceland, in 21 languages, with a conference calendar, talk videos and market prices. Jørgen runs it and publishes the source as the nordic-crypto repository. The newsroom follows the Norwegian press code of ethics, Vær Varsom-plakaten.

Follow it on X and Telegram, or try the TestFlight app for iPhone, iPad and especially Apple TV.

Open nordiccrypto.no

Open source

Each item below is a public repository or a pull or merge request by GitHub and GitLab user jQrgen. Short descriptions are taken from the project pages. Nothing here is a job title beyond the company field on his GitHub profile.

Nexa

GitLab · nexa/nexa

nexa

Nexa full node, miner, and wallet for Linux, Windows, and OSX.

Merged merge request !878 · Hard Fork 2 feature overview
GitLab · nexa/libnexakotlin

libnexakotlin

Multiplatform Kotlin library for wallets, websites, and apps that connect to the Nexa blockchain.

Merged merge request !164 · iOS: delete case-variant db files so a colliding name can be recreated
GitLab · nexa/specification

specification

Specification of the Nexa protocols and consensus.

Merged merge request !68 · Specify Hard Fork 2: Tailstorm, script/VM and validation changes
GitLab · nexa/npl

NPL

Nexa Programming Language: a domain-specific language and compiler for Nexa contracts in Kotlin, as described in the repository README.

Merged merge request !6 · Add a time lock vault contract example

Wally Wallet

GitLab · wallywallet/wallet

Wally Wallet

Nexa multi-platform personal-use wallet.

Merged merge request !833 · Keep the auto fast-forward watcher off mock accounts in UI tests
GitLab · wallywallet/enterprise

Wally Enterprise

Scriptable desktop Nexa wallet.

Merged merge request !51 · Add run command to the README.md

Bitcoin Unlimited

GitLab · bitcoinunlimited/votepeer-library

VotePeer library

VotePeer, described on the project as a Bitcoin Unlimited project. Site: voter.cash.

Merged merge request !327 · Deprecate getVoteStringHuman
GitLab · bitcoinunlimited/votepeer-android-app

VotePeer Android

VotePeer Android app for casting votes on-chain on Bitcoin Cash, from the project description.

Merged merge request !330 · Google Play advertising ID permission
GitLab · bitcoinunlimited/votepeer-web

VotePeer web

Website and backend functions for VotePeer.

Merged merge request !179 · Update to votepeerjs with RPC fallback
GitLab · bitcoinunlimited/votepeer-documentation

VotePeer documentation

Documentation for the VotePeer project.

Merged merge request !23 · Specify Android app
GitLab · bitcoinunlimited/libbitcoincashkotlin

libbitcoincashkotlin

Kotlin library that wraps libbitcoincash.so and adds blockchain functionality.

Merged merge request !38 · Add debugRelease build type
GitHub · BitcoinUnlimited/gitlab-ci-android

gitlab-ci-android

Public repository in the Bitcoin Unlimited organization on GitHub.

Merged pull request #3 · Install boost in Dockerfile

More merged work

libnexa-js — JavaScript library for Nexa. The README marks it deprecated in favor of libnexa-ts. Merged request: !16 · Shortly explain WIF (Wallet import format).
nexawebtemplate — merged request !5 · Fix broken URLs to Nexa spec.
nexaaiskills — public skills documenting the Nexa ecosystem and infrastructure, from the project description. Merged request: !5 · Teach the spec-authoring skill how to write.
JetBrains/compose-multiplatform — merged pull request #5522 · compilesdk 35.
soumak77/firebase-mock — merged pull request #34 · Firebase reference link.
sciencefair-land/sciencefair — merged pull request #36 · optional appdmg dependency.

Open merge requests

These were open on GitLab when this page was written. They are not described as merged.

Rostrum — Electrum server in Rust. Open draft: !460 · ci: Fix BCHN functional tests and win64 test jobs.
nexaScriptDebug — debugger for the Nexa script virtual machine. Open request: !47 · Compress static responses.
build-on-nexa — open draft: !4 · docs: testnet faucet status.
wallet-sdk-ts — TypeScript SDK for Nexa wallets, from the repository README. Open draft: !26 · docs(README): Node 22+/ESM requirements.

Public repositories

google-maps-stub — stub for the Google Maps JavaScript API, from the repository README.
ci-android-ndk-rust — Docker image for Android NDK and Rust CI.
nexa-energy-per-tx — public figure of electricity per transaction for Bitcoin and Nexa.
translator — static site of English translations of public Nexa regional Telegram chats, from the repository README.