Shadowing Practice: 10 very promising Open Source Projects you haven’t heard of - Learn English Speaking with Video
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I just discovered a way to build a billion dollar startup
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entirely from free open source software from the most talented programmers in the world.
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Actually, everybody knows that already.
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Like, why pay an engineer when you can just use their stuff for free on GitHub?
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In today's video, we're going to cheat off the smart kids homework
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and look at some of the coolest open source libraries that you've never heard of.
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Tools that will make your apps faster, better looking, and less expensive to run.
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You'll ask yourself, what the fk?
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How have I not been using that already?
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And that brings us to library number one, the fk?
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Normally, when you type a command into the terminal and make a typo, you just say fk in your head and then retype the command from scratch.
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The fk makes this process much more intuitive, allowing you to simply type fk into the terminal, then it will attempt to reformat your command automatically.
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To be honest, it's pretty fking useful.
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Here's a problem that anybody who's ever built a website has faced.
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Even if you work really hard to create a tiny JavaScript bundle, the product manager will eventually tell you to add a bunch of other junk like Mixpanel, Intercom, and Google Analytics.
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These third-party scripts clog up the main thread and will make your app slow no matter what.
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Luckily, there's an open-source library called PartyTown that can run third-party scripts from a web worker.
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JavaScript is single-threaded, but modern browsers allow you to run background jobs via web workers.
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PartyTown will offload any scripts that don't deal directly with the UI into a web worker, and that means the only thing on the main thread is your UI, which leads to a faster, more responsive website.
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Another problem that every app developer will need need to solve is user authentication.
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Firebase is great, but it's somewhat feature limited.
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Auth0 is great, but it's expensive.
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And that brings us to Super Tokens, which is an open source authentication solution.
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It provides SDKs for runtimes like Node and Python, allowing you to quickly self-host a fully featured authentication system with support for OAuth providers,
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passwordless login, but most importantly, it deals with session management and security.
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Pretty cool, but it's got nothing on this next one.
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HiMom is a blazingly fast JavaScript library that can say hi to your mom in record time.
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Here's a pro tip if you're building an open source library.
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Make sure that the readme includes phrases like blazingly fast, bleeding edge, holistic approach, and game changing
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because they make your library better the same way putting flame stickers on a car makes it go faster.
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Next up, we have a two-for-one.
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Many businesses out there need to build their own full-text search engine, either for internal data or to build a search engine for their customers.
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You could go with Elasticsearch, but it's expensive and complicated if you self-host.
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There are two very promising open-source alternatives.
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One is Melee Search, implemented in Rust, and the other is Zync, implemented in Go.
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Both provide a fast, simplified way to build your own search engine.
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Now, our next library, trcp, tprc, trpc, is exceptionally cool, but a little harder to explain.
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If you're building an API today, there are two main approaches, Rust and GraphQL.
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I won't go into the differences right now, although I do have videos for that, but there's another less talked about approach called RPC, or Remote Procedure Call.
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And basically, it's just a URL on a server, but unlike REST that corresponds to an entity, it corresponds to a function that you want to run on the server.
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This approach actually makes a ton of sense for many modern applications.
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TRPC allows you to build entirely type-safe APIs without the need for schemas or code generation like you would with GraphQL.
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Overall, I think it has the potential to fundamentally simplify the way we build full-stack web applications.
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Speaking of simplification, one company that has simplified the modern database is Airtable.
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The only problem is that you have to pay a company to use it.
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If only there was an open-source alternative.
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NocoDB does exactly that.
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It's an open-source Airtable that can be built on top of your own MySQL or Postgres database.
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In other words, it's an open-source no-code database or smart spreadsheet.
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As a developer, another piece of software you may want to replace is Postman, your HTTP client.
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An awesome open source alternative is Hopscotch, which is built with Vue.js and TypeScript entirely as a progressive web app.
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Not only is it open source, but you can go use it in the browser right now at Hopscotch.io
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and then install it as a PWA on your desktop.
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And now it runs in a native window and allows you to interact with your file system.
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Now, if you've ever coded in Python, then try JavaScript later, you might be shocked at how difficult it is to work with multi-dimensional arrays.
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What is this?
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In Python, we have libraries like pandas that can do all kinds of useful stuff to an array or data frame.
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Not many people realize that there's a library called DanfoJS
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that is inspired by pandas and can do many of the things you know and love, like read a CSV file and process the data within it before it gets sent to a machine learning library like TensorFlow.
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That's pretty useful, but the hardest thing in front-end web development is making your website look good.
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There's a million different tools out there that can help you do that, but one I've been really loving recently for React is Mantine.
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Not only does it have a bunch of well-crafted UI components, like this nice-looking timeline, but it also has a bunch of built-in hooks
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that handle many of the annoying things that you'll come across when building a web app, like debouncing an input or paginating a collection of items.
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On top of that, it has optional packages for a notification system, rich text editor, and a drop zone for file uploads.
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It's so awesome that we use it in one of the demo apps in the full React course on Fireship.io.
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Check it out if you want to build a serious app with React.
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Now the problem with all the libraries that we've looked at
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so far is that they require you to know how to write some code.
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If you have an idea for a full stack application, but want to skip the whole learn to code part, an open source tool to check out is Amplication.
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It's a tool that can automatically generate both your front end
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and back end code based on relationships to data models in a database that you can manage visually.
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The back end is built with other open source tools like Node, NestJS, and Prisma, while the front end is based on React.
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Even if you do know how to code, this is a tool that can speed up your workflow.
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And that gives you 10 new open source libraries to try out in your next project.
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Hit the like button and subscribe.
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Thanks for watching, and I will see you in the next one.
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Woordenschat en spreektips bij deze les
Deze spreekles op niveau B2 is gebaseerd op de video “10 very promising Open Source Projects you haven’t heard of”. Deze woorden komen het vaakst terug: source, library, web, app, build. Deze video bevat 76 zinnen en 1241 woorden om na te spreken. Het gesproken deel duurt 5:38. De spreker praat snel, ongeveer 220 woorden per minuut, dus reken op verbonden en ingeslikte klanken. Slechts 81% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden, dus de woordenschat is pittig.
Belangrijke woorden in deze video
De 15 moeilijkste woorden uit de video, met uitspraak en betekenis:
| Woord | Uitspraak | Betekenis |
|---|---|---|
| authentication zelfstandig naamwoord | /ɔːˌθɛntɪˈkeɪʃn̩/ | authenticatie, authentificatie |
| simplify werkwoord | /ˈsɪmplɪfaɪ/ | vereenvoudigen, versimpelen |
| correspond werkwoord | /ˌkoɹəˈspɑnd/ | corresponderen |
| stack zelfstandig naamwoord | /stæk/ | stapel |
| implement werkwoord | /ˈɪmpləmənt/ | implementeren, (in de praktijk) toepassen |
| developer zelfstandig naamwoord | /dɪˈvɛləpɚ/ | ontwikkelaar, ontwerper |
| simplification zelfstandig naamwoord | /ˌsɪm.plɪ.fɪˈkeɪ.ʃən/ | vereenvoudiging, versimpeling |
| spreadsheet zelfstandig naamwoord | /ˈspɹɛd.ʃit/ | spreadsheet, rekenblad |
| programmer zelfstandig naamwoord | /ˈpɹoʊɡɹæmɚ/ | programmeur |
| intuitive bijvoeglijk naamwoord | /ɪnˈtjuːɪtɪv/ | intuïtief |
| sticker zelfstandig naamwoord | /ˈstɪkə/ | klever |
| bleed werkwoord | /ˈbliːd/ | bloeden |
| exceptionally bijwoord | /ɪkˈsɛp(t)ʃənəli/ | buitengewoon |
| authorization zelfstandig naamwoord | /ˌɔːθəɹaɪˈzeɪʃən/ | machtiging, volmacht |
| startup zelfstandig naamwoord | /ˈstɑɹtˌʌp/ | opstart, opstarting |
Phrasal verbs die je zult horen
| Woord | Betekenis |
|---|---|
| check out werkwoord | onderzoeken |
| come across werkwoord | overkomen |
Grammatica in deze video
De structuren die de spreker het meest gebruikt, met de exacte woorden uit de video:
| Structuur | In de video |
|---|---|
| Present perfect have/has + voltooid deelwoord — iets uit het verleden dat nu nog telt | you've never heard · has faced · has simplified |
| Lijdende vorm be + voltooid deelwoord — het gaat om wat er gebeurt, niet om wie het doet | can be built · is built · might be shocked |
| Betrekkelijke bijzinnen who / which + zin — extra informatie over een persoon of ding | Tokens, which is · Hopscotch, which is |
Uitspraak om op te letten
De spreker gebruikt 11 samentrekkingen en verkorte vormen, zoals you'll, you're, you've. Spreek ze kort uit, zoals je ze hoort.
- De “th”-klanken: authentication /ɔːˌθɛntɪˈkeɪʃn̩/, authorization /ˌɔːθəɹaɪˈzeɪʃən/
- De klanken “sh” en “zh”: authentication /ɔːˌθɛntɪˈkeɪʃn̩/, simplification /ˌsɪm.plɪ.fɪˈkeɪ.ʃən/, spreadsheet /ˈspɹɛd.ʃit/, exceptionally /ɪkˈsɛp(t)ʃənəli/, authorization /ˌɔːθəɹaɪˈzeɪʃən/
- Lange woorden — let op de klemtoon: authentication /ɔːˌθɛntɪˈkeɪʃn̩/, developer /dɪˈvɛləpɚ/, simplification /ˌsɪm.plɪ.fɪˈkeɪ.ʃən/, intuitive /ɪnˈtjuːɪtɪv/, visually /ˈvɪzju.əli/
Klanken die Nederlandstaligen lastig vinden:
- Stemhebbende eindmedeklinker — /b/, /d/, /g/, /z/, /v/ niet verscherpen: correspond /ˌkoɹəˈspɑnd/, offload /ˌɑfˈloʊd/, intuitive /ɪnˈtjuːɪtɪv/, responsive /ɹɪˈspɑn.sɪv/, bleed /ˈbliːd/
- /æ/ — opener dan de Nederlandse “e”: stack /stæk/, paginate /ˈpæd͡ʒəneɪt/, programmer /ˈpɹoʊɡɹæmɚ/, interact /ɪn.təˈɹækt/, scratch /skɹæt͡ʃ/
- /w/ — met ronde lippen: workflow /ˈwɝkfloʊ/, homework /ˈhoʊmˌwɝk/
Zo oefen je met deze video
- Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
- Begin op 0,75× snelheid, spreek zin voor zin na en ga terug naar normale snelheid zodra het makkelijk gaat.
- Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als authentication, simplify, correspond.
Wat is de Shadowing-techniek?
Shadowing is een wetenschappelijk onderbouwde taalleermethode die oorspronkelijk is ontwikkeld voor professionele tolkentraining en gepopulariseerd door polyglot Dr. Alexander Arguelles. De methode is eenvoudig maar krachtig: je luistert naar native Engelse audio en herhaalt het onmiddellijk hardop — als een schaduw die de spreker volgt met slechts 1–2 seconden vertraging. In tegenstelling tot passief luisteren of grammaticadrills, dwingt shadowing je hersenen en mondspieren om echte spraakpatronen tegelijkertijd te verwerken en te reproduceren. Onderzoek toont aan dat het de uitspraaknauwkeurigheid, intonatie, ritme, verbonden spraak, luisterbegrip en spreekvaardigheid aanzienlijk verbetert — waardoor het een van de meest effectieve methoden is voor IELTS Speaking-voorbereiding en echte Engelse communicatie.