Issue with Missing Dependencies: github.com/agl/ed25519 in libsignal-protocol-go

Environment

OS: Debian 12
Go Version: 1.19
libsignal-protocol-go Version: v0.0.0-20170414202031-d09bcab9f18e

Steps to Reproduce

Set up a new Go environment on Debian.
Run go mod init signalclient to initialize a new module.
Run go get github.com/RadicalApp/libsignal-protocol-go to install the libsignal-protocol-go library.

Expected Behavior

The go get command should successfully download and install the libsignal-protocol-go library along with its dependencies.

Actual Behavior

The installation fails with errors related to missing modules github.com/agl/ed25519 and github.com/agl/ed25519/edwards25519.

Error Log

go: creating new go.mod: module signalclient
go: downloading github.com/RadicalApp/libsignal-protocol-go v0.0.0-20170414202031-d09bcab9f18e
go: downloading github.com/RadicalApp/complete v0.0.0-20170329192659-17e6c0ee499b
go: downloading github.com/agl/ed25519 v0.0.0-20200225211852-fd4d107ace12
go: downloading golang.org/x/crypto v0.15.0
github.com/RadicalApp/libsignal-protocol-go/ecc imports
github.com/agl/ed25519: cannot find module providing package github.com/agl/ed25519
github.com/RadicalApp/libsignal-protocol-go/ecc imports
github.com/agl/ed25519/edwards25519: cannot find module providing package github.com/agl/ed25519/edwards25519

Additional Information

The issue seems to be related to the ecc package within libsignal-protocol-go trying to import the github.com/agl/ed25519 package, which might be deprecated or moved.
This issue prevents successful installation and use of the libsignal-protocol-go library in Go projects.

Possible Solutions

Updating the library to use the crypto/ed25519 package from the Go standard library instead of github.com/agl/ed25519.
Providing an alternative or forked version of the library with updated dependencies.

RadicalApp / libsignal-protocol-go

Issue with Missing Dependencies: github.com/agl/ed25519 in libsignal-protocol-go #3