Cointoolkit: A Open Source Browser Based Peercoin & Bitcoin Wallet

Cointoolkit

A Open Source Browser Based Peercoin/Bitcoin (and some others) Wallet.

Live version available at https://peercoin.github.io/cointoolkit/

Github URL: https://github.com/peercoin/cointoolkit

Offline Compressed & uncompressed Address creation.
Offline Multisignature Address creation.
"In browser" Key (re)generation.
Send and receive payments.
Ability to decode transactions, redeem scripts and more offline.
Build custom transactions offline.
Sign transactions offline.
Signatures are deterministic as per RFC 6979 (https://tools.ietf.org/html/rfc6979#section-3.2)
Broadcast transactions.
nLockTime support.
Add custom data to transactions with the use of OP_RETURN.
Support current Dark Wallet Stealth Address structure (as of version Alpha 7) for outputs.
Brain wallet support.
Offline qrcode creator and scanning tool
HD (bip32) support

Download Details:
Author: peercoin
Source Code: https://github.com/peercoin/cointoolkit
License: MIT License

#peercoin #blockchain #cryptocurrency

An Open-Source Book About the Open Source World

Open source today is a word that often include a lot of things, such as open knowledge (Wikimedia projects), open hardware (Arduino, Raspberry Pi), open formats (ODT/ODS/ODP) and so on.

It is a world of opportunities that can be difficult for newcomers but also for intermediates. This article will help you discover how to approach specific roles, activities or projects/communities in the best way.

Everything Started with “Coaching for OpenSource Communities 2.0”

I decided to write a book in my personal style about my experience in the last 7 to 8 years in open source. I was surprised when I reached 100 pages about various different topics.

My idea was to write something that I would like to read, so nothing that is boring or complicated, but full of real facts.

The second goal was to include my experience but also my philosophy on contributing and how I contribute daily.

Thirdly, I wanted to give a lot of hints and resources and an overall view of this open source world.

Basically, I wanted to write something different from self-help or coaching books that includes just a list of suggestions and best practices. Instead, I take real examples from real life about the OSS world.

As a contributor and developer, I prefer to have real cases to study, because best practices are useful, but we need to learn from others and this world is full of good and bad cases to discover.

In 2019, I started writing a book after Fosdem 2019 and after 2 years inside the Mozilla Reps Council. In that Fosdem edition, I had a talk “Coaching for Open Source Communities 2.0” and after the feedback at the conference and my thoughts in various roles, activities, and projects, it was time to write something.

At the end it wasn’t a manual but a book that included my experience, learnings, best practices and so on in Localization, Development, Project Maintainer, Sysadmin, Community Management, Mentor, Speaker and so on. It contains the following sections:

Biography - This choice isn’t for self promotion but just to understand my point of view and my story that can be inspiring for others
Philosophy - Not the usual description of Open Source or the 4 freedoms, but just what Open Source means and how you can help
How to live inside the Open Source - A discovery about communications and tools, understanding the various kind of people and the best way to talk with your community
How to choose a project - Starting with some questions to yourself and how to involve more people in your project
The activity - Open Source is based on tasks that can be divided in 2 levels: Support, Testing, Marketing, Development etc
How to use your time - We are busy, we have a life, a job and a family but Open Source can be time-consuming
Why document is important - How writing documentation can be healthy for your community and the project’s future and brand

There are also three appendices that are manuals which I wrote throughout the years and gathered and improved for this book. They are about: community management, public speaking, and mentoring.

The book ends with my point of view about the future and what we have to do to change opinions about those topics.

I wrote this book and published in October 2019, but it was only possible with the help of reviews and localizers that improved and contributed. Yes, because this book is open source and free for everyone.

I picked the GPL license because this license changed the world and my life in the best way. Using this license is just a tribute. This decision usually is not clear because after all this is a book and there are better licenses like Creative Commons.

#open-source #contributing-to-open-source #programming #software-development #development #coding #books #open-source-software

Ray Patel

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Top 8 Java Open Source Projects You Should Get Your Hands-on [2021]

Learning about Java is no easy feat. It’s a prevalent and in-demand programming language with applications in numerous sectors. We all know that if you want to learn a new skill, the best way to do so is through using it. That’s why we recommend working on projects.

So if you’re a Java student, then you’ve come to the right place as this article will help you learn about the most popular Java open source projects. This way, you’d have a firm grasp of industry trends and the programming language’s applications.

However, before we discuss its various projects, it’s crucial to examine the place where you can get those projects – GitHub. Let’s begin.

#full stack development #java open source projects #java projects #open source projects #top 8 java open source projects #java open source projects

AppClues Infotech

1607423700

How much does it cost to build a Bitcoin Wallet App?

The growth of bitcoins had left almost all the financial business verticals amazed as well as customers, Hense there has been massive demand for the bitcoin-based mobile apps. Bitcoin is not a real coin made of any metal, but it is a form of cryptocurrency. The people conduct peer-to-peer transactions with ease for free of cost or at very low cost.

Bitcoin Wallet App

Due to impactful influence on the world market, a number of companies have already started to implement this cryptocurrency as it makes payments even more simplified. So, the bitcoins have become popular in the form of mobile applications. There are various Bitcoin wallet apps in app store like Blockchain. info, Electrum, Bread, Airbitz, BitPay, Copay, Paper wallet or Ledger that allow people to buy and sell bitcoins in a reliable manner.

Know Some Prominent Features of Bitcoin Wallet App

User Side Features

The Sellers and Buyers
User Registration
Manage Account
Buy Bitcoins
Sell Bitcoins
Filtered Search
Request a Deal
Identify the buyers
User status
Push Notifications

Admin Panel Features

User Management
Membership Management
Advertisement Management
Accept Pin Reset Request
Manage to Withdraw Request
Transaction Management

Advanced Features Of Bitcoin Wallet Application

QR Code Scanner
Auto-Cancellation of Twice Payments
Optional Logout
2-factor Authorization
Recurring Billing and Invoicing

Cost Idea To Develop Bitcoin Wallet App

If we proceed to the costing calculation part then the approximate cost of Bitcoin Based Wallet app can be around $50,000 to $1,00,000. It is just a rough idea of cost estimation and final cost will be vary based on client’s requirements like a number of native apps, a variety of features which they want to cover.

At AppClues Infotech, we have skilled professionals who have in-depth knowledge and have great expertise to help you build your own Bitcoin Wallet App. Our portfolio bag consists different types of applications covering all niches and domains.

#bitcoin wallet app #cost to build a bitcoin wallet app #develop bitcoin wallet app #wallet app

Houston Sipes

1600992000

Did Google Open Sourcing Kubernetes Backfired?

Over the last few years, Kubernetes have become the de-facto standard for container orchestration and has also won the race against Docker for being the most loved platforms among developers. Released in 2014, Kubernetes has come a long way with currently being used across the entire cloudscape platforms. In fact, recent reports state that out of 109 tools to manage containers, 89% of them are leveraging Kubernetes versions.

Although inspired by Borg, Kubernetes, is an open-source project by Google, and has been donated to a vendor-neutral firm — The Cloud Native Computing Foundation. This could be attributed to Google’s vision of creating a platform that can be used by every firm of the world, including the large tech companies and can host multiple cloud platforms and data centres. The entire reason for handing over the control to CNCF is to develop the platform in the best interest of its users without vendor lock-in.

#opinions #google open source #google open source tools #google opening kubernetes #kubernetes #kubernetes platform #kubernetes tools #open source kubernetes backfired

Best of Crypto

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