Show HN: "100 Page Python Intro" eBook https://bit.ly/3a1eTNS

Show HN: "100 Page Python Intro" eBook https://bit.ly/3aRXPJ8 February 9, 2021 at 01:33PM

Show HN: FINT, more than just a gRPC Test Client https://bit.ly/2Z3dsIc

Show HN: FINT, more than just a gRPC Test Client https://bit.ly/2MRhHEv February 9, 2021 at 11:22AM

Show HN: A strongly typed XML reader based on XPath for JVM https://bit.ly/2MNFxAY

Show HN: A strongly typed XML reader based on XPath for JVM https://bit.ly/3p7zjsG February 9, 2021 at 10:35AM

Show HN: A fast JSON library for Go https://bit.ly/2YXGyJl

Show HN: A fast JSON library for Go https://bit.ly/3ruLzVM February 8, 2021 at 01:58PM

Show HN: Kloudi – Locally-hosted universal CLI https://bit.ly/3rBSyfA

Show HN: Kloudi – Locally-hosted universal CLI https://bit.ly/3p46g9A February 8, 2021 at 07:37AM

Show HN: That $100 you didn't invest in Bitcoin because they said so https://bit.ly/3jD0RoL

Show HN: That $100 you didn't invest in Bitcoin because they said so https://bit.ly/3b1CSfh February 9, 2021 at 01:11AM

Show HN: InstaRoom turns your iPhone into a smart webcam https://bit.ly/3ju5vFD

Show HN: InstaRoom turns your iPhone into a smart webcam https://bit.ly/2MPnKtd February 8, 2021 at 11:06PM

Show HN: Clerk – all of user management as-a-service, not just authentication https://bit.ly/3a1v39P

Show HN: Clerk – all of user management as-a-service, not just authentication https://bit.ly/2LCU8Pe February 8, 2021 at 09:25PM

Show HN: Fitness Camera – turn your phone's camera into a fitness tracker https://bit.ly/39YMhEM

Show HN: Fitness Camera – turn your phone's camera into a fitness tracker https://bit.ly/3cURqzI February 8, 2021 at 08:05PM

Show HN: Zeneca – Share and discuss your favorite books with the world https://bit.ly/3d63deP

Show HN: Zeneca – Share and discuss your favorite books with the world https://bit.ly/3cPq0v7 February 8, 2021 at 06:52PM

Show HN: I built a tool to blur license plates https://bit.ly/3rA8HCg

Show HN: I built a tool to blur license plates https://bit.ly/2YZXONQ February 8, 2021 at 06:40PM

Show HN: Two-factor authentication for OpenSSH on an OpenWrt router https://bit.ly/3rBA7YK

Show HN: Two-factor authentication for OpenSSH on an OpenWrt router https://bit.ly/3a00QYG February 8, 2021 at 12:42PM

Show HN: HowManyUsers – Show how many users viewing your web page https://bit.ly/3a0wGEV

Show HN: HowManyUsers – Show how many users viewing your web page https://bit.ly/2YZWVFb February 8, 2021 at 11:25AM

Show HN: Weekend project, shows when the next season of your TV show premieres https://bit.ly/3jviYgb

Show HN: Weekend project, shows when the next season of your TV show premieres I treated myself to a solo hackathon this weekend and built https://bit.ly/39ZJeMy. The data is scrapped from IMDB and the website is generated using the hugo template engine. There's still a lot of optimization to be done but I'm planning to use this as a learning ground to try and get my pages to rank in Google. It would be really cool to search "next season of Ozark" and see a link to next-season-of.com. February 8, 2021 at 05:09PM

Show HN: "Programming Algorithms in Lisp” Book https://bit.ly/3q1EImw

Show HN: "Programming Algorithms in Lisp” Book https://bit.ly/36UnQGL February 8, 2021 at 05:09PM

Show HN: SVG Pattern Generator – Geometric seamless patterns for the web https://bit.ly/3p1yb9S

Show HN: SVG Pattern Generator – Geometric seamless patterns for the web https://bit.ly/3tOmDL4 February 8, 2021 at 05:08PM

Launch HN: Jiga (YC W21) – Faster custom parts for hardware products https://bit.ly/3jujD1y

Launch HN: Jiga (YC W21) – Faster custom parts for hardware products Hi HN! It's Assaf and I'm the co-founder of Jiga ( https://bit.ly/3q7F0Ze ). We make it fast and easy to produce parts for hardware products. You can upload a 3D model (such as STL or SLDPRT) file and get a production quote within seconds. We have a vetted network of manufacturers around the world who can produce your part with 3D printing (plastic and metal), CNC machining (plastic and metal), or sheet metal. It's literally 3 clicks: 1. upload your file on https://bit.ly/3q7F0Ze . 2. select manufacturing process 3. select quote and order. We built this because we are hardware makers ourselves. I was running a 3D printing manufacturing service before starting Jiga, and we were shocked by how bad an experience it was to get quotes and order parts online, or from machine shops. I spent a significant amount of my time and money on inefficient communication, paperwork, sourcing and quoting. Ok, so now you're probably asking how we're different from other online manufacturing companies? Well, besides being not as fast, they act as an unnecessary middleman. They cut a huge fee, block hardware builders from talking directly to manufacturers and getting professional feedback (such as making sure they can produce that 0.15mm tolerance exactly on that little hole). For examples, take some of our customers: an enterprise that builds jets for the US army, a company that builds a device that enables tractors to be autonomous, a hospital that builds 3D printed ventilation machines to tackle Covid-19 (first parts ordered with Jiga!) or a company that builds robotic arms. These companies start by looking for the right supplier to make their part. They email quote requests with the designs, some suppliers reply after a week, some don’t. They log this data into spreadsheets and folders while making comparisons. Finally after two weeks the supplier is ready to take your order but oh no! They mixed up the email threads and made a mistake - and the wrong part was produced. Worse, when getting into producing more than just prototypes, they have to manage the supply of many different components and timelines, making sure that that they won’t find themselves delaying over some little component and avoiding any miscommunication about parts or revisions. All this inefficiency is not only frustrating but also costly - makers and companies lose millions every year because of miscommunication and delays. We built Jiga to make this process efficient and painless. We handle all logistics (always first class/priority shipping) and make sure that customers are 100% happy with every order that they get. Additionally, we let you read supplier reviews, check their certifications and communicate directly with them. Want to make sure that the supplier is aware of that 0.15mm hole? No problem, reach to them over our platform and they will answer promptly. We make money from commissions on orders based on agreements with suppliers. I’m looking forward to talking to anyone who builds hardware, and to hearing your feedback and ideas and experiences in this space. If you've ever needed parts for things you were making, I hope you'll give us a spin. Have at it, HN! February 8, 2021 at 05:03PM

Show HN: A PC Gamepad Adapter for Path of Exile I Built in Golang https://bit.ly/2LvCmgB

Show HN: A PC Gamepad Adapter for Path of Exile I Built in Golang https://bit.ly/2N7HqZb February 8, 2021 at 04:06PM

Launch HN: Infracost (YC W21) – open-source cloud cost estimator https://bit.ly/3q0AHPl

Launch HN: Infracost (YC W21) – open-source cloud cost estimator Hi, we’re Ali, Hassan and Alistair and we co-founded Infracost ( https://bit.ly/3q0dSel ). Infracost is an open-source cloud cost estimator for your pull requests. When you change your infrastructure code (Terraform), Infracost posts a comment in the pull request, which tells you the impact of this change to your cloud bill, e.g. “this will increase your bill by 25% next month”. Existing cloud cost management products focus on post-bill analysis and target finance and management teams via charting dashboards. We built one of these back in 2013. They are all missing an important piece - the people who are responsible for purchasing cloud resources are not shown costs upfront, so they don’t know how much the resources will cost before launching them. We want to make cloud costs simpler to understand for developers and DevOps so they can make better decisions, which we believe will lead to more cost-efficient systems. In 2011 Ali and Hassan started a cloud cost forecasting company based on Ali’s PhD research. They applied to YC and got through to the interview round. RightScale acquired them in 2012. I read about their YC interview experience on HN, reached out and ended up joining them. We went on to form the team that built RightScale’s cloud cost management product (now called Flexera Optima). In our most recent startup (which failed) we were launching cloud stacks for users on-demand and we wanted a way to work out the cost of each. We hacked together something by building a GraphQL-based cloud pricing API and a CLI that parsed our Terraform code and output a cost breakdown. We released the code on GitHub as Infracost and discovered that others had similar problems. We got requests to support more cloud services and integrate it into pull requests. At the moment, Infracost supports Terraform for AWS and Google Cloud (we’re adding new resources every week). It can be integrated into GitHub, GitLab, CircleCI, Bitbucket and Atlantis, or can be used anywhere through the CLI. In the future we plan to add support for more cloud vendors and infrastructure-as-code tools (Azure, CloudFormation, Pulumi, etc). We now spend a lot of our days trawling through the cloud pricing pages working out how pricing works for different cloud services. We’re grateful for the contributors who have helped us with this. AWS currently has over 2 million price points and this is constantly increasing. Users are requesting better support for usage-based services like data transfer, S3 and Lambda. Currently we allow for usage estimates to be passed into the tool, and are looking at other methods, i.e. based on last month’s actual usage. We’ve also learned, the hard way, the importance of UX in CLI and workflow tools. So far we are seeing a few use-cases for Infracost. Some enterprise users have integrated it into their “self-service” cloud catalog to set cost expectations before provisioning. Other users have integrated it into their CI pipeline as a safety net to catch unexpected costs. And some users are running it at design time to compare options and model usage. We’ve talked to Sid Sijbrandij (CEO of GitLab), and Ian Tien (CEO of Mattermost) about when and how to monetize. Currently we are thinking about a buyer-based open core approach, in which the individual contributor edition will always be free, and enterprise paid features will include multi-team support, management reports and private cloud support. We’d really appreciate it if you try it out and give us feedback. You can check out the repo at https://bit.ly/2LzHhxc . We’d love your thoughts on our approach, and anything that has worked, or hasn’t worked for you when it comes to managing cloud costs. February 8, 2021 at 03:06PM

Show HN: A fast way to track crypto popularity https://bit.ly/3cOltJr

Show HN: A fast way to track crypto popularity https://bit.ly/3jvGDgt February 8, 2021 at 04:33AM