with AI, interactive educational tools like this are way easier to build for a single person. i wouldn’t bother doing it as a side project before, but this was easily just a few evenings of work i think i’ll approach future educational content in the same vein — writing plus interactive tools

in case you missed it: yesterday i wrote about a new open source tool i made, called RSC Explorer. it lets you interactively step through how the React Server Components protocol works directly in the browser — no server needed. View quoted note →

*stream lol

hn discussion of course completely missing the point news.ycombinator.com/item?id=4631...

fantastic article “two kinds of vibe coding” the part on testing is particularly insightful davidbau.com/archives/202... https://morel.us-east.host.bsky.network/xrpc/com.atproto.sync.getBlob?did=did:plc:fpruhuo22xkm5o7ttr2ktxdo&cid=bafkreih2tngkrpe7p5jrogteilnzj7smpnk5eqrcu2gdwev5adtuas5yxe

or like in typelex i whipped up a simple DSL for testing all features of the CLI in a few minutes tangled.org/danabra.mov/... if you know what you’re doing, you have no excuse skipping good tests now. they’re cheap to make and add a ton of value. and cheap to evolve

my point is that normally in a project i wouldn’t even bother with these powerful harnesses because creating them involves a lot of thinking and iterating on their design is very annoying but with llms you just steer them a few times or ask to port entire suite to a new format etc. it’s easy

or have a look at this setup in sidetrail tests are declarative and can emit lexicon records tangled.org/danabra.mov/... but behind the scenes the test harness actually even verifies eventual consistency of optimistic DB writes vs firehose ingester tangled.org/danabra.mov/... tangled.org/danabra.mov/si...

ok that doesn’t seem very clever does it? just a few DOM assertions? actually no! it’s using helpers that are packed with invariants about how ui elements progress over time, what’s allowed to update in what order, what should match what i explained these to claude github.com/gaearon/rsce... github.com/gaearon/rscexp...