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NextCloud + LocalAI

Summary: Make sure to name your model gpt-3.5-turbo I installed LocalAI in a container and the NextCloud AI integration app. Couple notes on getting things to work: * since I installed LocalAI inside a Podman Pod, the LocalAI instance is available on localhost; therefor on the NextCloud side I had

pgcouch and lake to ESM+TS

I recently converted the @shimaore/pgcouch and @shimaore/lake projects to TypeScript. @shimaore/pgcouch implements CouchDB document revision semantics over PostgreSQL's JSON storage. The module provides an easy path to using PostgreSQL as a NoSQL database; JSON documents are stored and retrieved primarily using an _id field. MongoDB-style

DJ night

This was a couple weeks ago — three microphones, couple speakers, mixing console, video projection & some custom software hiding in the laptop — setup ready for a karaoke night for a Filipino association!

esl module v11.0.1 is out

The esl module allows Node.js to interact with and control FreeSWITCH, a multimedia platform. This release is a major release and introduces some breaking changes, alongside with improvements. Breaking changes first! This version does away with binding callbacks to the this object representing a call. For people who used

BodyPix and OBS

BodyPix and OBS

Got BodyPix and OBS Studio Virtual Camera to work with minimum fuss. You'll need: * a recent copy of v4l2loopback; you can compile it from source by cloning https://github.com/umlaeute/v4l2loopback.git * a recent copy of OBS Studio; you can compile it from source by cloning https:

(more) WebAssembly

(more) WebAssembly

Some interesting WebAssembly tidbits, some new, some old: * WebAssembly Text Format on MDN [https://developer.mozilla.org/en-US/docs/WebAssembly/Understanding_the_text_format] was a fun tutorial to follow, showing the innards of a WebAssembly module; * Multi-value [https://hacks.mozilla.org/2019/11/multi-value-all-the-wasm/] makes the stack-nature of the

Of WebAssembly (and COBOL)

Of WebAssembly (and COBOL)

The running joke at the office is that I'm the only one old enough to ever take COBOL [https://en.wikipedia.org/wiki/COBOL] classes. My younger colleagues therefor insist on feeding me bits of COBOL news. I guess I might as well share! Of course the recent

ALSA MIDI Sequencer as UDP Service (part 2)

My work on a libuv-driven ALSA MIDI Sequencer UDP Service has been going very well, and the service itself is working as expected. This past week I finished work on the ALSA MIDI topology interface, enumerating clients, ports, and subscriptions on the one hand, and connecting and disconnecting ports on

Create new bucket in Clever-Cloud Cellar (S3)

To use aws-sdk to create a new bucket in Clever-Cloud Cellar, you must set LocationConstraint to the empty string "". Otherwise the operation will fail with InvalidLocationConstraint. Full example (using Node.js) follows, replace … with your values. const AWS = require('aws-sdk'); AWS.config.update({accessKeyId: '…'

ALSA MIDI Sequencer as UDP service

ALSA MIDI Sequencer as UDP service

`alsa-lib` is used to interface with the ALSA MIDI Sequencer, while `libuv` is used to build the UDP component

Authorization

(How should I build proper authorization semantics for a complex dataset?) * Take inspiration from GraphQL (especially Mutations) and micro-services and ask: what is the smallest usable operation? * Design operations around security/authorization boundaries (instead of designing authorization around the operations). * Differentiate in semantic terms: book.add.existing isn't

Parsing JSON numbers in ECMAScript

I've been worried about numbers and JSON for a while. Not that JSON has a problem: numbers are clearly specified, and in languages (such as Erlang) which support arbitrary precision out-of-the box, parsing JSON is not an issue. In ECMAScript however, JSON.parse will generate JSON numbers with

See The Sky

> See the sky before you see the screen — JJ Tiziou [https://www.jjtiziou.net/]

Some options for Fastify

I've been experimenting with Fastify [https://fastify.io] and I've enjoyed how it tightly integrates with JSON Schemas to validate both parameters sent to the server, and responses sent back to the client. The modules that made it into my toolbox so far are: * fastify-sentry [https:

Getting WebAssembly to run in Node.js (v13)

Getting WebAssembly to run in Node.js (v13)

I ran into errors while trying out WebAssembly instanciation in Node.js…