C, C++, and SystemVerilog
[ Git Repo: yacemu ] [ Git Repo: yayacemu ]
[ Tetris Demo: yayacemu ] [ Bowling Demo: yayacemu ]
Project Warminster is a collection of 3 subprojects:
C#, Kubernetes, Rancher, and HAProxy
[ Project Website ]Nick Web Services is a cloud infrastructure provider service that I created and run. It allows people to deploy containerized versions of their web apps across our multiple points of presence. It provides geo-distributed high availability by default with no extra configuration needed from users hosting their webapp with us.
Hardware-wise we use old Dell PowerEdge servers running Proxmox. We then have VMs running in Proxmox that run Kubernetes clusters. At the peak I had 4 points of presence: Austin, Hill Country, Schuylkill, and Philadelphia. The deployments are managed through GitOps with Rancher Fleet. Unfortunately, we only have one point of presence at the moment due to a number of factors, however that should change this fall.
NWS maintained 100% uptime for the period from 11/8/2023 to 11/28/2024 (over a year!).
The website you're reading this on right now is hosted on NWS!
C++, CMake, and Python
[ Git Repo ]Anthracite is a web server written for Linux in C++. It currently supports both HTTP/1.0 and HTTP/1.1 and TLS. It heavily uses a dependency injection design pattern to allow for a high degree of customization. It currently uses an event-loop threading model and uses the epoll() system call to efficiently detect events. Previously, it used a connection per thread model.
Anthracite's HTTP request parser is able to parse roughly 27 million requests per second on my laptop, compared to Boost's HTTP parser which parsed roughly 1 million per second. I'd imagine a lot of this is due to missing functionality in Anthracite's HTTP parser, but it's enough to get by! While I haven't run extensive end-to-end tests on the newest version of Anthracite, in the limited tests I've done during development, it's been able to handle ~300k RPS on my laptop, a comparable number to NGINX.
The website you're reading this on right now is hosted with Anthracite!
C, ASM, and CMake
[ Git Repo ]RAZZLE is a monolithic kernel. Currently, it's very limited and I haven't made a lot of progress on it. It's currently single-core but supports preemptive timesharing. It has basic I/O interfaces for ps2, serial, and vga. It currently has a very limited in-ram filesystem using a proprietary filesystem. I'm currently working on adding an ATA driver so I can have programs run on RAZZLE without including them at build-time.
I've made various (minor) open source contributions. I'd say the only one worth anything was the cgroups2 support in nginx-ingress.
[ kubernetes nginx-ingress: cgroups2 configuration support ]
[ argo cd: fix styling issue on dashboard ]
[ endeavouros: update default i3 config to work with numpad keys ]
Rust
[ Git Repo ]SQUIRREL stands for SQL Query Util-Izing Rust's Reliable and Efficient Logic. It is a SQL database that I am writing in Rust. Currently, it can create tables, insert data into tables, and select all data from a given table. The biggest challenge so far has been writing the parser. My next steps are to add WHERE clauses to SELECT statements, allow column filtering in SELECT statements, and add DELETE statements.
C#, Kubernetes, SQL Server, and MongoDB
CavCash was a company that I founded which built a debit-based payment system similar to PayPal and Venmo. I assembled a 5 person team and took on a technical role in the company, writing most of our backend codebase. Our backend used C#, ASP.NET, Microsoft SQL Server, and MongoDB. Our infrastructure changed throughout the lifetime of the company, initially it was on Microsoft Azure using Azure App Service. We then pivoted to AWS using Elastic Beanstalk. We also ran on Google Cloud Platform using Compute Engine. Finally, we setup our own servers in-house and managed our deployments with Kubernetes.
We launched in 2021, with the ability to send money between real banks using the ACH network. We ended up processing a few hundred dollars in transaction volume before ultimately shutting down due to a lack of funding.