Deepnote supports sharing or embedding of individual blocks. You will see the option to share a block in the right sidebar when you focus a block.
Notes about this feature
Only outputs without the block code can be embedded or shared
The embeds are cached, this means that it can take several minutes to reflect the changes.
The embedded or shared links will work up until you decide to turn the sharing off (even if your project is offline without a hardware)
The embeds will work with the wast majority of services (e.g. Notion, Medium) + Deepnote is an embed.ly provider.