Julia Evans+

jvns pushed radiosnacktech.github.io

poll: do you prefer examples with: (you can pick more than one, trying to think

poll: do you prefer examples with: (you can pick more than one, trying to think about what my opinions are about the use of placeholders in examples) EDIT: please no more comments about the official recommended values for ip addresses and hostnames in documentation, try to think about that as a separate question a realistic/working value (`ping -c2 example.com`) a foobar-type placeholder (`ping -c

RE: https://xoxo.zone/@gretchenmcc/117129377626182493 some fun (and free to read

RE: https://xoxo.zone/@gretchenmcc/117129377626182493 some fun (and free to read & print!) linguistics zines at https://lingthusiasm.com/zines

what are your favourite commands to run over ssh (like `ssh user@host "COMMAND"`

what are your favourite commands to run over ssh (like `ssh user@host "COMMAND"`)? the only thing I have in my history right now is: ssh user@host 'tcpdump -i any BPF_FILTER_GOES_HERE -w -' > out.pcap to quickly get a local pcap file

i'm contemplating writing something basic about copying files over ssh with rsyn

i'm contemplating writing something basic about copying files over ssh with rsync but the only thing I can think of is how I can never remember how the trailing slash works and it makes me avoid using rsync whenever possible

what are your favourite settings to set in ~/.ssh/config? right now all I have i

what are your favourite settings to set in ~/.ssh/config? right now all I have is Host some-alias Hostname 1.2.3.4 User whateever

poll: when you first learned linux/unix, did you use (you can pick more than one

poll: when you first learned linux/unix, did you use (you can pick more than one): (not looking for extra details right now, I'm just reflecting on the role of "free internet resources" recently) a course (like a university course etc) free internet resources a book you bought informal mentorship (like a coworker etc)

lazyweb: I'm curious about how to get a list of all of the different "kinds" of

lazyweb: I'm curious about how to get a list of all of the different "kinds" of things SSH can do. my impression is that there's: - open a terminal session - just run one command - TCP port forwarding - X11 forwarding - copy files and that these all separate "commands" or "protocols" inside SSH. Not sure how to get a list of all of them though. edit: I think the answer is "read https://github.com/

wondering today about how people are intended to learn how to use openssh (as a

wondering today about how people are intended to learn how to use openssh (as a user, not as an administrator) https://www.openssh.org/ has the reference documentation, but I feel like there must be another document somewhere that's intended for use by beginners that I'm not finding i don't really know how various BSD projects think about documentation

trying to make a list of everything I ever do with SSH

trying to make a list of everything I ever do with SSH

jvns pushed radiosnacktech.github.io

jvns pushed mess-with-dns

jvns pushed radiosnacktech.github.io

jvns pushed radiosnacktech.github.io

jvns opened a pull request in docs

jvns created a branch

jvns forked jvns/vue-docs from vuejs/docs

these SSH polls are reminding me that (though I'm not a security person) I'm a b

these SSH polls are reminding me that (though I'm not a security person) I'm a big believer that security systems should allow users to be inattentive and lazy and confused and to do the thing that seems the most convenient instead of the the thing that might be the most secure, and to still enable good security

another ssh poll: when SSHing to a new machine, have you ever checked that the k

another ssh poll: when SSHing to a new machine, have you ever checked that the key fingerprint is what it's supposed to be? the message: ------------------------------------------------ The authenticity of host 'ssh.nyc1.nearlyfreespeech.net (2607:ff18:1001:2::1:22)' can't be established. ED25519 key fingerprint is: SHA256:4ckOOn5g9ONLZ4M4LJo5VD4KkWaTNTMweFG1uHALdiQ This key is not known by any ot

a follow up poll: if you secure your SSH keys, do you do it with: (if you don't

a follow up poll: if you secure your SSH keys, do you do it with: (if you don't secure your SSH keys, the previous poll in this thread is for you!) an SSH passphrase a password manager (1password etc) a yubikey or similar other

another ssh poll: have you ever encountered a situation where this error message

another ssh poll: have you ever encountered a situation where this error message actually alerted you to an MITM attack? @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that

poll: when you create an SSH key, do you set a passphrase? yes no it depends/oth

poll: when you create an SSH key, do you set a passphrase? yes no it depends/other what?

i’ve read books about science that feel sort of prescriptive and I love this so

i’ve read books about science that feel sort of prescriptive and I love this so much on how to engage with science about how humans behave and what we need (“demand a science that gives voice to your important lived experiences”)

finally got my copy of @grimalkina’s The Psychology of Software Teams! excited t

finally got my copy of @grimalkina’s The Psychology of Software Teams! excited to dig in

that's awesome, Alexis is great!

that's awesome, Alexis is great!

been making a single-page app with pocketbase.io this week and it's been a nice

been making a single-page app with pocketbase.io this week and it's been a nice experience. I like making single-page JS apps with a Go backend API and this means that I don't have to write the Go backend. Really impressive project given that it's built by one person in their spare time.

been making a single-page app with https://pocketbase.io/ this week and it's bee

been making a single-page app with https://pocketbase.io/ this week and it's been a nice experience. I like making single-page JS apps with a Go backend API and this means that I don't have to write the Go backend. Really impressive project given that it's built by one person in their spare time.

i'm so happy I made this tiny example repo of how to get started with vue.js, ju

i'm so happy I made this tiny example repo of how to get started with vue.js, just got to use it again today https://github.com/jvns/vue3-tiny-template

if you could wave a magic wand and improve one page in the Git documentation, wh

if you could wave a magic wand and improve one page in the Git documentation, which one would it be?

made some tiny git zines to give out at a “git for beginners” workshop we’re doi

made some tiny git zines to give out at a “git for beginners” workshop we’re doing

that's cool! do you manage migrations yourself too?

that's cool! do you manage migrations yourself too?

cool to see that the ICFP programming contest this year is focused on systems pr

cool to see that the ICFP programming contest this year is focused on systems programming icfpcontest2026.com

cool to see that the ICFP programming contest this year is focused on systems pr

cool to see that the ICFP programming contest this year is focused on systems programming https://icfpcontest2026.com/ (via @lindsey)

something that's been surprising about Django is that I always heard that if my

something that's been surprising about Django is that I always heard that if my Python app is slow, it's probably a bad database query. But so far my experience has been that a lot of the time something in my Python code (either in my own code or in Django or a combination) is using too much CPU, and it's useful to do a CPU profile with py-spy to figure out what's going on and fix it https://githu

another thing that's fun about working in Python (instead of Go) is that if I wa

another thing that's fun about working in Python (instead of Go) is that if I want to add a debug print statement deep inside some dependency to see what's going on I can just run `vim ./.venv/lib/python3.13/site-packages/django/db/backends/sqlite3/base.py` or whatever and edit it

there's something very fun to me about blogging about learning django in 2026, i

there's something very fun to me about blogging about learning django in 2026, i feel like these posts have a very limited audience in a delightful way

some more things about Django I've been enjoying jvns.ca/blog/2026/07...

some more things about Django I've been enjoying jvns.ca/blog/2026/07...

some more things about Django I've been enjoying https://jvns.ca/blog/2026/07/21

some more things about Django I've been enjoying https://jvns.ca/blog/2026/07/21/more-nice-django-things/

I don't know what the process was like! They managed everything.

I don't know what the process was like! They managed everything.

wizard zines has its first translation! How Git Works (wizardzines.com/zines/git

wizard zines has its first translation! How Git Works (wizardzines.com/zines/git) is now available in Korean, translated by ByteFreaksStudio inf.run/XYiAR I do not know how to read Korean but it's very cool to see :)

wizard zines has its first translation! How Git Works (https://wizardzines.com/z

wizard zines has its first translation! How Git Works (https://wizardzines.com/zines/git) is now available in Korean, translated by ByteFreaksStudio https://inf.run/XYiAR I do not know how to read Korean but it's very cool to see :)

Every so often I consider self-hosting my own website, but I'm feeling more and

Every so often I consider self-hosting my own website, but I'm feeling more and more like I do not want to do that, I want an organization that I can trust to take care of things so that I do not have to. And enough control and open standards so that if something goes wrong, I can migrate. the idea of doing everything myself so that I don't have to trust anyone to manage it for me just does not fe

also have any of you learned how to read sqlite query plans and if so how did yo

also have any of you learned how to read sqlite query plans and if so how did you learn?

how did you learn how to read query plans?

how did you learn how to read query plans?

i use wal mode but I still kind of treat it like a magic incantation that I hop

i use wal mode but I still kind of treat it like a magic incantation that I hope will make things better and I would not say I have a real understanding of it haha

which one do you find is faster? with django because i have a lot less control t

which one do you find is faster? with django because i have a lot less control than I'm used to so often I'm just not 100% clear on what is happening under the hood and it can be annoying to find out

learning a few things about running SQLite jvns.ca/blog/2026/07...

learning a few things about running SQLite jvns.ca/blog/2026/07...

learning a few things about running SQLite https://jvns.ca/blog/2026/07/17/learn

learning a few things about running SQLite https://jvns.ca/blog/2026/07/17/learning-about-running-sqlite/

jvns pushed radiosnacktech.github.io

jvns pushed radiosnacktech.github.io

jvns pushed radiosnacktech.github.io

jvns starred rofreg/pinchpad

is there a good website with stats on who owns ipv4 addresses globally? (like wh

is there a good website with stats on who owns ipv4 addresses globally? (like which countries have the most IPs?). i know it's sort of a poorly defined question (edit: thanks for all the answers! i think this wikipedia article is exactly what i was looking for https://en.wikipedia.org/wiki/List_of_countries_by_IPv4_address_allocation)

jvns opened an issue in tldraw

jvns opened an issue in tldraw

oh turns out that actually my app was being throttled by fly.io because it's onl

oh turns out that actually my app was being throttled by fly.io because it's only supposed to use 1/16 of a CPU and that how that works is extremely clearly documented on their site https://fly.io/docs/machines/cpu-performance/

TIL that a) if you're running a process in a VM (like on shared hosting) then th

TIL that a) if you're running a process in a VM (like on shared hosting) then the process's CPU can be "stolen" by other processes on the host b) htop can show how much of the CPU is "stolen" with the "Detailed CPU time" setting c) htop has a settings menu if you press "S" https://serverfault.com/questions/180711/what-exactly-do-the-colors-in-htop-status-bars-mean

what issues do you run into when trying to figure out how to configure Git? thin

what issues do you run into when trying to figure out how to configure Git? thinking about whether the structure of https://git-scm.com/docs/git-config could be improved

asking for a friend: how do you buy ipv4 addresses in 2026? are there recommende

asking for a friend: how do you buy ipv4 addresses in 2026? are there recommended brokers to use? how long is the process? (in europe)

i finally wrote an interactive git branch switcher with fzf that I like using #!

i finally wrote an interactive git branch switcher with fzf that I like using #!/bin/bash git checkout $(git branch | fzf | sed 's/^[* ] //') (it also uses `git branch --sort=-committerdate or something so the most recent branch is first)

i started doing a more complicated project with sqlite as a backend and I'm star

i started doing a more complicated project with sqlite as a backend and I'm starting to feel more constrained by the db level write lock i learned that I can't do long running "cleanup" jobs on the db (or at least I need to be really careful about making sure they don't lock the db for too long)

i love this blog post, it's always so difficult for me to think about timezone i

i love this blog post, it's always so difficult for me to think about timezone issues and this is such a great example of how the way you model time data depends on what you're doing! https://www.crunchydata.com/blog/british-columbia-and-time-zone-changes (like, if there's an appointment at 4PM in Vancouver in the future, we may not *know* today what time in UTC that corresponds to! it could chang

I continue to really not understand Nix and also it's the most functional way to

I continue to really not understand Nix and also it's the most functional way to manage a tiny VPS that I pay literally 0 attention to most of the time that I've ever found. It's very impressive.

i feel the same way and I don’t know what i’m going to do. I guess my hope is th

i feel the same way and I don’t know what i’m going to do. I guess my hope is that i can migrate to another system since at least pyproject.toml is a standard format

the next version of Python is going to have a built in sampling profiler!!!! thi

the next version of Python is going to have a built in sampling profiler!!!! this is so exciting to see docs.python.org/3.15/library...

exciting to read about this work on rv, uv has made Python so much easier for me

exciting to read about this work on rv, uv has made Python so much easier for me

here's a first draft of the ssh key page I think it's probably missing somethin

here's a first draft of the ssh key page I think it's probably missing something important, there are so many weird gotchas around ssh keys

i was literally just working on a guide to that (in the context of setting up Gi

i was literally just working on a guide to that (in the context of setting up Git for the first time) , not done yet

it's cool to read other people's takes on how to organize their CSS

it's cool to read other people's takes on how to organize their CSS

this is incredible

this is incredible

they're all at wizardzines.com/comics/ (you can use the search to find this one

they're all at wizardzines.com/comics/ (you can use the search to find this one)

ok but i need to know where these trees are

ok but i need to know where these trees are

IIRC you can get ** in bash and zsh too these days

IIRC you can get ** in bash and zsh too these days

this looks super cool, i like how in open-props-ui.netlify.app/html/compone... y

this looks super cool, i like how in open-props-ui.netlify.app/html/compone... you can literally copy and paste all the html/css for that component (minus the base theme stuff) and it seems like a reasonable size

I've started using ** in Fish instead of find & xargs and I really love it, inst

I've started using ** in Fish instead of find & xargs and I really love it, instead of writing `find . -name '*.py' | xargs wc -l` I can just write `wc -l **.py` it hasn't 100% replaced `find` for me but I'm definitely using xargs way less than I used to

I also sometimes edit posts days later to for example add a permalink to that po

I also sometimes edit posts days later to for example add a permalink to that post, for example the Mastodon version of this post has a permalink to the comic but the Bluesky one doesn't since bsky doesn't have editing so a 5 minute edit window wouldn't help me very much bsky.app/profile/b0rk...

i use editing all the time on mastodon to sort of do moderation on big threads,

i use editing all the time on mastodon to sort of do moderation on big threads, like if a post gets 30 replies about THING and I've heard enough, I'll edit it to say like "edit: please no more replies about THING" it's a nice alternative to locking the thread

aw I'm so happy you liked it! thanks for writing that post on Tailwind years ago

aw I'm so happy you liked it! thanks for writing that post on Tailwind years ago ❤️

thanks for this, honestly the idea of making my sites work well with user styles

thanks for this, honestly the idea of making my sites work well with user styles is intimidating to me but I like hearing about how folks are thinking about these things. I'm slowly starting to see how I could make my CSS a little less rigid and more flexible but it's gonna be a long journey for me

also added a note to this post at the end about how the critiques I've read of h

also added a note to this post at the end about how the critiques I've read of how Tailwind impacts the industry made me want to stop using it bsky.app/profile/b0rk...

right now I'm doing what I thought would be a very tedious task (moving a bunch

right now I'm doing what I thought would be a very tedious task (moving a bunch of CSS from Tailwind to using vanilla CSS) and actually it's helping me learn me some things about structuring CSS that I've wanted to learn for a long time. it's a lot of fun even though it does take time

jvns contributed to ecki/net-tools

just preordered @grimalkina 's The Psychology of Software Teams from my local bo

just preordered @grimalkina 's The Psychology of Software Teams from my local bookstore! i've been really enjoying her podcast about the psychology of learning, like this one on what it means to be good at math https://www.changetechnically.fyi/2396236/episodes/18400124-math-is-for-girls & I'm really looking forward to the book

i've been working on moving away from Tailwind, and one thing I'm realizing I ap

i've been working on moving away from Tailwind, and one thing I'm realizing I appreciated about Tailwind is having a basic color palette (blues, grays, greens, indigos, pinks, purples, reds, yellows) I could use while prototyping i extracted it into css variables so I can still use it if I want: https://gist.github.com/jvns/9e59b2cd1fe12601084ba78dded072fe but now I'm curious: are there similar CS

testing Vue components in the browser (another entry in my "how to write fronten

testing Vue components in the browser (another entry in my "how to write frontend JS without using a server JS framework, but still have nice things" series) https://jvns.ca/blog/2026/05/02/testing-vue-components-in-the-browser/

really appreciated this post by Armin Ronacher about the importance of software

really appreciated this post by Armin Ronacher about the importance of software archival and what might come after GitHub personally i’m not very enthusiastic about self hosting and this post helped me see why https://lucumr.pocoo.org/2026/4/28/before-github/

are there any "serverless" ways to run a server that include a managed sqlite da

are there any "serverless" ways to run a server that include a managed sqlite database (read/write)? I want like glitch or val town but with a little sqlite db that gets automatically backed up without me having to think about it Maybe it doesn't make sense in a "serverless" context because inherently you can only have 1 instance running at a time and serverless is all about scaling or whatever (I

i’ve been enjoying posts about self hosting recently, I appreciate people writin

i’ve been enjoying posts about self hosting recently, I appreciate people writing about what’s possible even if it’s not something I want to do right now or maybe ever https://tarakiyee.com/the-inventory-i-should-have-done-years-ago/ https://codon.org.uk/~mjg59/blog/p/self-hosting-as-much-of-my-online-presence-as-practical/

RE: https://mastodon.social/@sovtechfund/116295084754150995 here's an opportunit

RE: https://mastodon.social/@sovtechfund/116295084754150995 here's an opportunity for technical writers to get paid to work on open source documentation!

also I love how the How DNS Works table of contents sort of explains how DNS wor

also I love how the How DNS Works table of contents sort of explains how DNS works a little bit https://wizardzines.com/zines/dns/

just noticed it's How DNS Works' 4th birthday soon! https://wizardzines.com/zine

just noticed it's How DNS Works' 4th birthday soon! https://wizardzines.com/zines/dns/ it's still one of my favourite zines, and it comes with a free ★★ playground ★★ at https://messwithdns.net where you can create DNS records and see what happens!

WigglyPaint is very fun https://beyondloom.com/tools/wigglypaint.html (via https

WigglyPaint is very fun https://beyondloom.com/tools/wigglypaint.html (via https://beyondloom.com/blog/onwigglypaint.html)

(the above happened because i realized at some point that even though diffie hel

(the above happened because i realized at some point that even though diffie hellman key exchange _uses_ things like "elliptic curves" or "modular arithmetic" to work, you do not need to actually _understand_ those things to understand the basic idea, and I thought that was cool!) anyway this is what your computer is doing every time you make a HTTPS connection, to figure out what secret key to us

how diffie hellman key exchange works (with as little math as possible) https://

how diffie hellman key exchange works (with as little math as possible) https://wizardzines.com/comics/how-diffie-hellman-key-exchange-works/