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Show HN: I built a self-hosted course platform in Clojure

https://clojure.stream
27•jacekschae•1d ago

Comments

jacekschae•1d ago
Hey HN — I'm Jacek. I've been teaching Clojure through video courses (Reagent, Re-frame, Reitit, Datomic, Pedestal) for a few years, hosted on Podia.

I finally got around to building my own platform. It's Clojure on the backend, self-hosted, and gave me the chance to drop prices significantly since there's no platform cut anymore.

The migration from Podia is complete — all user accounts, subscriptions, and purchases carried over. Existing subscribers had their prices automatically lowered.

Happy to talk about the stack, the migration process, or the courses themselves.

tommica•1h ago
Could you tell more about the stack? And also, you clearly know your way around it, so would be curious to hear your thoughts about the language itself - what do you like about it?
EToS•1h ago
snappy!
nickjj•1h ago
Is the source code available? You mentioned it being self hosted, thought I might be able to find it on GitHub but didn't see it linked anywhere.

I am directing the Department of War to designate Anthropic a supply-chain risk

https://twitter.com/secwar/status/2027507717469049070
621•jacobedawson•1h ago•497 comments

OpenAI raises $110B on $730B pre-money valuation

https://techcrunch.com/2026/02/27/openai-raises-110b-in-one-of-the-largest-private-funding-rounds...
333•zlatkov•9h ago•432 comments

Qt45: A small polymerase ribozyme that can synthesize itself

https://www.science.org/doi/10.1126/science.adt2760
13•ppnpm•31m ago•1 comments

A new California law says all operating systems need to have age verification

https://www.pcgamer.com/software/operating-systems/a-new-california-law-says-all-operating-system...
290•WalterSobchak•9h ago•293 comments

Emuko: Fast RISC-V emulator written in Rust, boots Linux

https://github.com/wkoszek/emuko
15•felipap•1h ago•0 comments

NASA announces overhaul of Artemis program amid safety concerns, delays

https://www.cbsnews.com/news/nasa-artemis-moon-program-overhaul/
195•voxadam•7h ago•195 comments

A better streams API is possible for JavaScript

https://blog.cloudflare.com/a-better-web-streams-api/
360•nnx•10h ago•118 comments

Otters as Bioindicators of Estuarine Health

https://emt.pensoft.net/article/185117/
13•PaulHoule•1h ago•1 comments

Let's discuss sandbox isolation

https://www.shayon.dev/post/2026/52/lets-discuss-sandbox-isolation/
88•shayonj•5h ago•23 comments

Show HN: Claude-File-Recovery, recover files from your ~/.claude sessions

https://github.com/hjtenklooster/claude-file-recovery
30•rikk3rt•7h ago•11 comments

Writing a Guide to SDF Fonts

https://www.redblobgames.com/blog/2026-02-26-writing-a-guide-to-sdf-fonts/
63•chunkles•5h ago•5 comments

Open source calculator firmware DB48X forbids CA/CO use due to age verification

https://github.com/c3d/db48x/commit/7819972b641ac808d46c54d3f5d1df70d706d286
128•iamnothere•8h ago•57 comments

Get free Claude max 20x for open-source maintainers

https://claude.com/contact-sales/claude-for-oss
402•zhisme•15h ago•185 comments

Show HN: I built a self-hosted course platform in Clojure

https://clojure.stream
27•jacekschae•1d ago•4 comments

Allocating on the Stack

https://go.dev/blog/allocation-optimizations
113•spacey•7h ago•46 comments

Rob Grant, creator of Red Dwarf, has died

https://www.beyondthejoke.co.uk/content/17193/red-dwarf-rob-grant
199•nephihaha•4h ago•59 comments

Kyber (YC W23) Is Hiring an Enterprise Account Executive

https://www.ycombinator.com/companies/kyber/jobs/59yPaCs-enterprise-account-executive-ae
1•asontha•5h ago

A Chinese official’s use of ChatGPT revealed an intimidation operation

https://www.cnn.com/2026/02/25/politics/chatgpt-china-intimidation-operation
105•cwwc•8h ago•81 comments

PCB Tracer

https://pcbtracer.com
38•Luc•3d ago•18 comments

Modeling cycles of grift with evolutionary game theory

https://www.oranlooney.com/post/grifters-skeptics-marks/
75•ibobev•3d ago•32 comments

Leaving Google has actively improved my life

https://pseudosingleton.com/leaving-google-improved-my-life/
369•speckx•5h ago•200 comments

Implementing a Z80 / ZX Spectrum emulator with Claude Code

https://antirez.com/news/160
119•antirez•2d ago•58 comments

Court finds Fourth Amendment doesn’t support broad search of protesters’ devices

https://www.eff.org/deeplinks/2026/02/victory-tenth-circuit-finds-fourth-amendment-doesnt-support...
471•hn_acker•9h ago•83 comments

Reading English from 1000 AD

https://lewiscampbell.tech/blog/260224.html
103•LAC-Tech•3d ago•37 comments

Can you reverse engineer our neural network?

https://blog.janestreet.com/can-you-reverse-engineer-our-neural-network/
253•jsomers•2d ago•181 comments

Building secure, scalable agent sandbox infrastructure

https://browser-use.com/posts/two-ways-to-sandbox-agents
44•gregpr07•9h ago•9 comments

"Just a little detail that wouldn't sell anything"

https://unsung.aresluna.org/just-a-little-detail-that-wouldnt-sell-anything/
97•bobbiechen•3d ago•21 comments

We gave terabytes of CI logs to an LLM

https://www.mendral.com/blog/llms-are-good-at-sql
155•shad42•8h ago•88 comments

The Most-Seen UI on the Internet? Redesigning Turnstile and Challenge Pages

https://blog.cloudflare.com/the-most-seen-ui-on-the-internet-redesigning-turnstile-and-challenge-...
42•corvad•2h ago•46 comments

Tell HN: MitID, Denmark's digital ID, was down

118•mousepad12•13h ago•163 comments