What started as “please remember my dev ports” became an SNI router that hands the original TLS socket to Phoenix—no TLS termination, no relay, real client IP. Inspired by Chris McCord and enabled by @mtrudel.bsky.social 's Bandit/Thousand Island. cookbook.geuer-pollmann.de/elixir-beam/...
cookbook.geuer-pollmann.de
Proxying Without the Proxy | cookbook.geuer-pollmann.de
![Elixir code:
defmodule Chain do
use ReactiveStruct
defstruct ~w[base step1 step2 final]a
computed(:final, deps: [:step2], do: step2 * step2)
computed(:step1, deps: [:base], do: base * 2)
computed(:step2, deps: [:step1], do: step1 + 10)
end
chain = %{final: 256} = Chain.new(base: 3)
chain = %{final: 400} = Chain.update(chain, base: 5)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:bohbypttsuiw4knejkcs2ycl/bafkreiexwdm3i4e3ean4dpncg7ugmyniyyo2kpyrjindx5zubglxkqohjq)
![Elixir code
defmodule SomeStruct do
use ReactiveStruct
defstruct ~w{x2 x3 x ya yb y sum}a
computed(:y, deps: [:ya, :yb], do: ya - yb)
computed(:x, deps: [:x2, :x3], do: x2 + x3)
computed(:sum, deps: [:x, :y], do: x * y)
end
SomeStruct.new(x2: 2, x3: 3, ya: 4, yb: 5)
|> IO.inspect(label: :a)
|> SomeStruct.update(x2: 10)
|> IO.inspect(label: :b)
Kino.Mermaid.new(SomeStruct.mermaid())
and a Mermaid diagram](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:bohbypttsuiw4knejkcs2ycl/bafkreifdqafoedq4rnjpt5mf5ibfbg3hm5lmhtqfxezaousge5j4jsajlu)
