An introduction to Platform Engineering, and related tools. Speaker will share some of its experience in delivering Ops as Platform in an engineering team.

Most attacks against software rely on subverting a program's control flow to execute malicious code. Control-flow integrity (CFI) refers to a set of security techniques that aim to limit a program's flow to its original execution path. In this talk we will explore the state-of-the-art in CFI mitigations on Arm-based systems, namely Pointer Authentication (PAuth) and Branch Target Identification (BTI). These are hardware-assisted mechanisms deployed in the latest System-On-Chip architectures, raising the bar against software exploitation.

In this sharing sessions, I will talk about the development and usage of Zoraxy, one of my open source projects that I am using as an NPM (nginx proxy manager) replacement. Zoraxy provide an easy to use & fast to deploy reverse proxy server for networking noobs with tons of handful utilities to help manage your homelab. I will share a bit on how the features in Zoraxy can help you build a geologically distributed web services, proxying request across nodes using ZeroTier UI in Zoraxy as well as some basic ideas of subdomain & TLS SNI.

hkbus.app is a web application utilizes the public transport ETA data from data.gov.hk. The proposal will covers the software stack for achieving extremely low cost to support several thousands and even more users. Then, I will present the outcome and status of marketing, mainly via SEO and social media. In the third part, I will jump into the discussion on contribution by other users and the community status in Telegram, currently with ~1300 users and 7 admins.

Do you have too many monitoring tools and find yourself moving between different tabs or products when troubleshooting?

With Grafana LGTM stack, we could improve our observability with: Loki-for logs, Grafana - for dashboards and visualization, Tempo - for traces, and Mimir - for metrics.

There are many different services in Azure, some of them you need to care for scale out.

Azure Adventure is an open source HTML5 RPG game that builds on top of the latest version of Azure Automatic Grading Engine. Students need to talk to non-player character (NPC) in the game, then NPC will give some Azure tasks to students. If students can complete those tasks within time limit, then students can get some coins in the game.