Items tagged juliaevans in 2023
Filters: Year: 2023 × juliaevans × Sorted by date
Notes on using a single-person Mastodon server. Julia Evans experiences running a single-person Mastodon server (on masto.host—the same host I use for my own) pretty much exactly match what I’ve learned so far as well. The biggest disadvantage is the missing replies issue, where your server only shows replies to posts that come from people who you follow—so it’s easy to reply to something in a way that duplicates other replies that are invisible to you. # 16th September 2023, 10:35 pm
Lima VM—Linux Virtual Machines On macOS (via) This looks really useful: “brew install lima” to install, then “limactl start default” to start an Ubuntu VM running and “lima” to get a shell. Julia Evans wrote about the tool this morning, and here Adam Gordon Bell includes details on adding a writable directory (by default lima mounts your macOS home directory in read-only mode). # 10th July 2023, 7:01 pm
In general my approach to running arbitrary untrusted code is 20% sandboxing and 80% making sure that it’s an extremely low value attack target so it’s not worth trying to break in.
Programs are terminated after 1 second of runtime, they run in a container with no network access, and the machine they’re running on has no sensitive data on it and a very small CPU.
— Julia Evans # 25th May 2023, 8:12 pm
Implement DNS in a weekend (via) Fantastically clear and useful guide to implementing DNS lookups, from scratch, using Python’s struct, socket and dataclass modules—Julia Evans plans to follow this up with one for TLS which I am very much looking forward to. # 12th May 2023, 6:14 pm
Writing Javascript without a build system (via) Julia Evans perfectly captures why I prefer not to use build systems in the majority of my projects that use JavaScript: “... my experience with build systems (not just Javascript build systems!), is that if you have a 5-year-old site, often it’s a huge pain to get the site built again. And because most of my websites are pretty small, the advantage of using a build system is pretty small.” # 18th February 2023, 5:25 am
Examples of floating point problems (via) I learned so much practical stuff from this post by Julia Evans. There are no 32-bit floating point numbers between 262144.0 and 262144.03125, which breaks code that attempts to keep incrementing by 0.01. I knew about the JavaScript tweet ID problem (JavaScript can’t handle numbers like 1612850010110005250) but I didn’t realize it affected jq as well. Lots more great examples in here. # 13th January 2023, 3:41 pm