Add 45 new open source projects with hiring opportunities (#148)

Expanded the list from 58 to 103 open source projects offering jobs.

New additions include:
- Modern developer tools: PostHog, Supabase, Appwrite, Directus, Payload CMS
- Data & Analytics: Airbyte, Dagster, dbt, Milvus, Weaviate, Qdrant
- Workflow & Automation: Temporal, n8n, Prefect, Windmill, Activepieces
- Infrastructure: GitLab, HashiCorp (Terraform, Vault), Kong, Traefik, Vector
- AI/ML: Hugging Face, MindsDB, Langfuse, LiteLLM
- Communication: Rocket.Chat, Chatwoot
- CRM & Project Management: Twenty, Plane
- Low-code platforms: NocoDB, ToolJet, Budibase
- Developer platforms: Sourcegraph, Backstage, Vercel, Prisma
- And more: Strapi, Cal.com, Plausible, Infisical, Novu, Camunda, Cube.js, Superset, Flagsmith

All entries include repository, description, careers page, tags, and primary language.

Co-authored-by: Claude <noreply@anthropic.com>

Author: timqian

repos.csv

@@ -55,4 +55,51 @@ slic3r/Slic3r,Open Source toolpath generator for 3D printers,https://slic3r.org/
 chaos-genius/chaos_genius,ML powered analytics engine for outlier detection and root cause analysis.,https://www.chaosgenius.io/about.html,"ai, alert, alert-messages, analytics, anomaly-detection, business-intelligence, data-visualization, dataquality, deep-learning, hacktoberfest, machine-learning, ml, monitoring, monitoring-tool, observability, outlier-detection, python, rootcauseanalysis, seasonality, time-series",Python
 metabase/metabase,The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data :bar_chart:,https://www.metabase.com/jobs/,"analytics, bi, business-intelligence, businessintelligence, clojure, dashboard, data, data-analysis, data-visualization, database, metabase, mysql, postgres, postgresql, reporting, slack, sql-editor, visualization",Clojure
 mattermost/mattermost-server,Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..,https://jobs.lever.co/mattermost/,"collaboration, golang, hacktoberfest, mattermost, monorepo, react, react-native",TypeScript
-mattermost/focalboard,"Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.",https://jobs.lever.co/mattermost/,"asana, collaboration, goal-tracking, golang, hacktoberfest, kanban-board, notion, project, project-management, trello",TypeScript
+mattermost/focalboard,"Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.",https://jobs.lever.co/mattermost/,"asana, collaboration, goal-tracking, golang, hacktoberfest, kanban-board, notion, project, project-management, trello",TypeScript
+posthog/posthog,Open-source product analytics platform. Alternative to Mixpanel and Amplitude.,https://posthog.com/careers,"analytics, product-analytics, data-analytics, self-hosted, open-source, mixpanel-alternative",Python
+supabase/supabase,The open source Firebase alternative. Build a complete backend in minutes.,https://supabase.com/careers,"backend, database, firebase-alternative, postgres, realtime, self-hosted",TypeScript
+gitlab-org/gitlab,GitLab is an open source end-to-end software development platform with built-in version control and CI/CD.,https://about.gitlab.com/jobs/,"ci-cd, devops, git, gitlab, version-control, collaboration, ruby",Ruby
+airbytehq/airbyte,Open-source data integration platform that syncs data from applications and databases to warehouses.,https://airbyte.com/company/careers,"data-integration, etl, elt, data-pipeline, data-engineering",Python
+temporalio/temporal,Temporal is a microservice orchestration platform which enables developers to build scalable applications without sacrificing productivity or reliability.,https://temporal.io/careers,"workflow, orchestration, microservices, durable-execution, fault-tolerance",Go
+strapi/strapi,Open source Node.js Headless CMS to easily build customisable APIs.,https://strapi.io/careers,"cms, headless-cms, nodejs, api, content-management",TypeScript
+n8n-io/n8n,Free and source-available fair-code licensed workflow automation tool.,https://n8n.io/careers/,"workflow-automation, low-code, integration, automation, zapier-alternative",TypeScript
+dagster-io/dagster,An orchestration platform for the development and observation of data assets.,https://dagster.io/company/careers,"data-orchestration, data-pipeline, workflow, etl, python",Python
+sourcegraph/sourcegraph,Code intelligence platform for developers. Universal code search and intelligence.,https://sourcegraph.com/jobs,"code-search, developer-tools, code-intelligence, golang",Go
+mindsdb/mindsdb,Platform for building AI from enterprise data. Integrates with 200+ data sources.,https://mindsdb.com/careers,"machine-learning, ai, data-science, ml-ops, predictive-analytics",Python
+appwrite/appwrite,Secure Backend Server for Web and Mobile developers. Open source Firebase alternative.,https://www.appwrite.careers/,"backend, baas, firebase-alternative, authentication, database",TypeScript
+dbt-labs/dbt-core,"dbt enables data analysts and engineers to transform data using SQL, following software engineering practices.",https://www.getdbt.com/careers,"data-transformation, analytics, sql, data-engineering, dbt",Python
+directus/directus,"Open-source headless CMS and data platform. Turn any SQL database into an API, admin panel, and app backend.",https://directus.io/careers,"headless-cms, api, database, data-platform",TypeScript
+calcom/cal.com,"Open source scheduling infrastructure. Connect a billion people by 2031, calendly alternative.",https://cal.com/jobs,"scheduling, calendar, booking, calendly-alternative, open-source",TypeScript
+plausible/analytics,"Simple, privacy-friendly alternative to Google Analytics.",https://plausible.io/jobs/product-engineer,"analytics, privacy, google-analytics-alternative, web-analytics, gdpr",Elixir
+prisma/prisma,Next-generation ORM for Node.js & TypeScript. Works with PostgreSQL and other databases.,https://www.prisma.io/careers,"orm, database, typescript, nodejs, developer-tools",TypeScript
+RocketChat/Rocket.Chat,"Open-source team communication platform. Slack and Microsoft Teams alternative.",https://www.rocket.chat/jobs,"chat, communication, team-collaboration, slack-alternative, messaging",TypeScript
+weaviate/weaviate,"Open-source vector database that stores both objects and vectors for AI-native applications.",https://wellfound.com/company/weaviate/jobs,"vector-database, machine-learning, ai, semantic-search",Go
+qdrant/qdrant,High-performance vector search engine and database for the next generation of AI applications.,https://join.com/companies/qdrant,"vector-search, vector-database, similarity-search, rust, machine-learning",Rust
+infisical/infisical,"Open-source platform for secrets, certificates, and privileged access management.",https://infisical.com/careers,"secrets-management, security, devops, developer-tools",TypeScript
+novuhq/novu,Open-source notification infrastructure for developers. Email and multi-channel notifications.,https://handbook.novu.co/careers-page,"notifications, infrastructure, email, sms, developer-tools",TypeScript
+vercel/next.js,The React Framework for production. Used by Vercel's platform.,https://vercel.com/careers,"react, nextjs, web-framework, frontend, serverless",TypeScript
+hashicorp/terraform,Infrastructure as Code tool for building and versioning infrastructure safely and efficiently.,https://www.hashicorp.com/en/careers/open-positions,"infrastructure-as-code, devops, cloud, automation, terraform",Go
+hashicorp/vault,Tool for secrets management and data protection.,https://www.hashicorp.com/en/careers/open-positions,"secrets-management, security, encryption, vault",Go
+vectordotdev/vector,High-performance observability data pipeline for logs and metrics.,https://vector.dev/community/,"observability, logging, metrics, data-pipeline, rust",Rust
+activepieces/activepieces,"Open-source business automation tool, no-code workflow automation. Zapier alternative.",https://www.ycombinator.com/companies/activepieces/jobs,"automation, workflow, no-code, zapier-alternative",TypeScript
+chatwoot/chatwoot,"Open-source customer engagement platform. Alternative to Intercom, Zendesk.",https://www.chatwoot.com/careers,"customer-support, live-chat, helpdesk, intercom-alternative",Ruby
+twentyhq/twenty,Open-source CRM. Modern alternative to Salesforce.,https://twenty.com/jobs,"crm, salesforce-alternative, customer-relationship-management",TypeScript
+langfuse/langfuse,Open-source LLM engineering platform for observability and analytics.,https://langfuse.com/careers,"llm, observability, ai, machine-learning, developer-tools",TypeScript
+huggingface/transformers,State-of-the-art Machine Learning for PyTorch and TensorFlow.,https://apply.workable.com/huggingface/,"machine-learning, nlp, deep-learning, pytorch, transformers",Python
+backstage/backstage,Open platform for building developer portals. Created by Spotify.,https://www.lifeatspotify.com/jobs,"developer-portal, platform-engineering, internal-tools, kubernetes",TypeScript
+BerriAI/litellm,"Python SDK and Proxy Server to call 100+ LLM APIs in OpenAI format.",https://www.ycombinator.com/companies/litellm/jobs,"llm, ai, openai, api-gateway, python",Python
+windmill-labs/windmill,"Open-source developer platform to turn scripts into webhooks, workflows and UIs.",https://www.ycombinator.com/companies/windmill/jobs,"workflow-engine, developer-platform, automation, rust",Rust
+makeplane/plane,"Open-source project management tool. Alternative to Jira, Linear, and Asana.",https://plane.so/careers,"project-management, jira-alternative, issue-tracking, collaboration",TypeScript
+milvus-io/milvus,"High-performance, cloud-native vector database built for scalable vector ANN search.",https://zilliz.com/careers,"vector-database, ai, machine-learning, similarity-search",Go
+PrefectHQ/prefect,"Modern workflow orchestration for data pipelines, ML workflows, and more.",https://job-boards.greenhouse.io/prefect,"workflow-orchestration, data-engineering, python, automation",Python
+Kong/kong,"Cloud-native API gateway and service mesh for microservices and distributed architectures.",https://konghq.com/company/careers,"api-gateway, microservices, service-mesh, cloud-native",Lua
+traefik/traefik,"Cloud Native Application Proxy. Edge router for microservices with automatic service discovery.",https://traefik.io/careers,"proxy, reverse-proxy, load-balancer, cloud-native, kubernetes",Go
+camunda/camunda-bpm-platform,"Workflow and decision automation platform. Open-source BPMN workflow engine.",https://camunda.com/careers/,"workflow-automation, bpmn, process-orchestration, business-process-management",Java
+payloadcms/payload,"Open-source fullstack Next.js framework. TypeScript headless CMS and application framework.",https://payloadcms.com/careers,"cms, headless-cms, nextjs, typescript, content-management",TypeScript
+cube-js/cube,"Headless BI platform for building data applications. Universal semantic layer for metrics.",https://cube.dev/careers,"analytics, business-intelligence, semantic-layer, data-platform",TypeScript
+NocoDB/nocodb,"Open-source Airtable alternative. Turns any database into a smart spreadsheet.",https://nocodb.com/careers,"no-code, airtable-alternative, database, spreadsheet",TypeScript
+formbricks/formbricks,"Open-source experience management. Privacy-first surveys and feedback.",https://formbricks.com/careers,"survey, feedback, experience-management, privacy",TypeScript
+ToolJet/ToolJet,"Open-source low-code platform to build and deploy internal tools. Retool alternative.",https://tooljet.com/careers,"low-code, internal-tools, retool-alternative, no-code",TypeScript
+Budibase/budibase,"Open-source low-code platform for building internal apps in minutes.",https://budibase.com/careers,"low-code, internal-tools, app-builder, automation",TypeScript
+apache/superset,"Modern data exploration and visualization platform. Open-source BI tool.",https://preset.io/careers,"business-intelligence, data-visualization, analytics, bi",Python
+Flagsmith/flagsmith,"Open-source feature flag and remote config service. Alternative to LaunchDarkly.",https://flagsmith.com/careers,"feature-flags, remote-config, deployment, continuous-delivery",Python