Remember, for every paid SaaS, there is a free open-source self-hosted alternative: Notion -> Appflowy Zoom -> Jitsi Jira -> Plane Airtable -> NocoDB Vercel -> Coolify Heroku -> Dokku Firebase -> Pocketbase/Appwrite/Convex/Supabase Shopify -> Prestashop GitHub -> GitLab Slack -> Mattermost Salesforce CRM -> ERPNext Dropbox -> NextCloud Mailchimp -> Mautic Trello -> Wekan Docusign -> Docuseal Calendly -> Cal dot com Datadog -> Prometheus Google Analytics -> Matomo Microsoft Office 365 -> LibreOffice Asana -> OpenProject what else?
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