diff --git a/.build/00_setup.lua b/.build/00_setup.lua
new file mode 100644
index 0000000..eb9fc93
--- /dev/null
+++ b/.build/00_setup.lua
@@ -0,0 +1,3 @@
+task("dirs", function()
+	os.execute("mkdir -p release")
+end)
\ No newline at end of file
diff --git a/.build/01_velx.lua b/.build/01_velx.lua
new file mode 100644
index 0000000..2da2d9c
--- /dev/null
+++ b/.build/01_velx.lua
@@ -0,0 +1,222 @@
+-- VELX builder
+
+--[[----------------------------------------------------------------------------
+	LZSS - encoder / decoder
+	This is free and unencumbered software released into the public domain.
+	Anyone is free to copy, modify, publish, use, compile, sell, or
+	distribute this software, either in source code form or as a compiled
+	binary, for any purpose, commercial or non-commercial, and by any
+	means.
+	In jurisdictions that recognize copyright laws, the author or authors
+	of this software dedicate any and all copyright interest in the
+	software to the public domain. We make this dedication for the benefit
+	of the public at large and to the detriment of our heirs and
+	successors. We intend this dedication to be an overt act of
+	relinquishment in perpetuity of all present and future rights to this
+	software under copyright law.
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+	IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+	OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	OTHER DEALINGS IN THE SOFTWARE.
+	For more information, please refer to <http://unlicense.org/>
+--]]----------------------------------------------------------------------------
+--------------------------------------------------------------------------------
+local M = {}
+local string, table = string, table
+
+--------------------------------------------------------------------------------
+local POS_BITS = 12
+local LEN_BITS = 16 - POS_BITS
+local POS_SIZE = 1 << POS_BITS
+local LEN_SIZE = 1 << LEN_BITS
+local LEN_MIN = 3
+
+--------------------------------------------------------------------------------
+function M.compress(input)
+	local offset, output = 1, {}
+	local window = ''
+
+	local function search()
+		for i = LEN_SIZE + LEN_MIN - 1, LEN_MIN, -1 do
+			local str = string.sub(input, offset, offset + i - 1)
+			local pos = string.find(window, str, 1, true)
+			if pos then
+				return pos, str
+			end
+		end
+	end
+
+	while offset <= #input do
+		local flags, buffer = 0, {}
+
+		for i = 0, 7 do
+			if offset <= #input then
+				local pos, str = search()
+				if pos and #str >= LEN_MIN then
+					local tmp = ((pos - 1) << LEN_BITS) | (#str - LEN_MIN)
+					buffer[#buffer + 1] = string.pack('>I2', tmp)
+				else
+					flags = flags | (1 << i)
+					str = string.sub(input, offset, offset)
+					buffer[#buffer + 1] = str
+				end
+				window = string.sub(window .. str, -POS_SIZE)
+				offset = offset + #str
+			else
+				break
+			end
+		end
+
+		if #buffer > 0 then
+			output[#output + 1] = string.char(flags)
+			output[#output + 1] = table.concat(buffer)
+		end
+	end
+
+	return table.concat(output)
+end
+
+--------------------------------------------------------------------------------
+function M.decompress(input)
+	local offset, output = 1, {}
+	local window = ''
+
+	while offset <= #input do
+		local flags = string.byte(input, offset)
+		offset = offset + 1
+
+		for i = 1, 8 do
+			local str = nil
+			if (flags & 1) ~= 0 then
+				if offset <= #input then
+					str = string.sub(input, offset, offset)
+					offset = offset + 1
+				end
+			else
+				if offset + 1 <= #input then
+					local tmp = string.unpack('>I2', input, offset)
+					offset = offset + 2
+					local pos = (tmp >> LEN_BITS) + 1
+					local len = (tmp & (LEN_SIZE - 1)) + LEN_MIN
+					str = string.sub(window, pos, pos + len - 1)
+				end
+			end
+			flags = flags >> 1
+			if str then
+				output[#output + 1] = str
+				window = string.sub(window .. str, -POS_SIZE)
+			end
+		end
+	end
+
+	return table.concat(output)
+end
+
+
+local function struct(tbl)
+	local pat = tbl.endian or "="
+	local args = {}
+	for i=1, #tbl do
+		local a, b = pairs(tbl[i])
+		local k, v = a(b)
+		args[i] = k
+		pat = pat .. v
+	end
+	return setmetatable({}, {__call=function(_, arg)
+		--checkArg(1, arg, "string", "table")
+		if (type(arg) == "string") then
+			local sval = {string.unpack(pat, arg)}
+			local rtn = {}
+			for i=1, #args do
+				rtn[args[i]] = sval[i]
+			end
+			return rtn, sval[#sval]
+		elseif (type(arg) == "table") then
+			local sval = {}
+			for i=1, #args do
+				sval[i] = arg[args[i]]
+			end
+			return string.pack(pat, table.unpack(sval))
+		end
+	end, __len=function()
+		return string.packsize(pat)
+	end})
+end
+
+
+local velx_spec = struct {
+	endian = "<",
+	{magic="c5"},
+	{fver="B"},
+	{compression="B"},
+	{lver="B"},
+	{os="B"},
+	{arctype="c4"},
+	{psize="I3"},
+	{lsize="I3"},
+	{ssize="I3"},
+	{rsize="I4"}
+}
+
+local function velx_multistep(path, arcpath, args, steps)
+	local shell_args = ""
+	for k, v in pairs(args) do
+		if (k == "PWD") then
+			shell_args = "cd "..v.."; " .. shell_args
+		else
+			shell_args = shell_args .. k .. "=\"".. v .."\" "
+		end
+	end
+	steps.precomp()
+	local h = io.popen(shell_args.."luacomp "..path.." 2>/dev/null", "r")
+	local prog = h:read("*a")
+	h:close()
+	prog = steps.postcomp(prog)
+	steps.prearc()
+	local arc = ""
+	if arcpath then
+		h = io.popen("cd "..arcpath.."; find $".."(ls) -depth | tsar -o", "r")
+		arc = h:read("*a")
+		h:close()
+		steps.postarc()
+	end
+	if (not args.noz) then
+		steps.prez()
+		prog = M.compress(prog)
+		steps.postz()
+	end
+	local header = velx_spec({
+		magic = "\27VelX",
+		compression = (args.noz and 0) or 1,
+		lver = 0x53,
+		fver = 1,
+		os = 0xDA, --da, comrade
+		psize = #prog,
+		lsize=0,
+		ssize=0,
+		rsize=#arc,
+		arctype=(arcpath and "tsar") or ""
+	})
+	return header .. prog .. arc
+end
+
+local function velx(path, arcpath, args)
+	return velx_multistep(path, arcpath, args, {
+		precomp = function()end,
+		postcomp = function(prog) return prog end,
+		prearc = function()end,
+		postarc = function()end,
+		prez = function()end,
+		postz = function()end,
+	})
+end
+
+local function velxv2(sections)
+
+end
+
+EXPORT.velx = velx
+EXPORT.velx_multistep = velx_multistep
\ No newline at end of file
diff --git a/.build/02_lzss.lua b/.build/02_lzss.lua
new file mode 100644
index 0000000..c1ebf76
--- /dev/null
+++ b/.build/02_lzss.lua
@@ -0,0 +1,92 @@
+local M = {}
+local string, table = string, table
+
+--------------------------------------------------------------------------------
+local POS_BITS = 12
+local LEN_BITS = 16 - POS_BITS
+local POS_SIZE = 1 << POS_BITS
+local LEN_SIZE = 1 << LEN_BITS
+local LEN_MIN = 3
+
+--------------------------------------------------------------------------------
+function M.compress(input)
+	local offset, output = 1, {}
+	local window = ''
+
+	local function search()
+		for i = LEN_SIZE + LEN_MIN - 1, LEN_MIN, -1 do
+			local str = string.sub(input, offset, offset + i - 1)
+			local pos = string.find(window, str, 1, true)
+			if pos then
+				return pos, str
+			end
+		end
+	end
+
+	while offset <= #input do
+		local flags, buffer = 0, {}
+
+		for i = 0, 7 do
+			if offset <= #input then
+				local pos, str = search()
+				if pos and #str >= LEN_MIN then
+					local tmp = ((pos - 1) << LEN_BITS) | (#str - LEN_MIN)
+					buffer[#buffer + 1] = string.pack('>I2', tmp)
+				else
+					flags = flags | (1 << i)
+					str = string.sub(input, offset, offset)
+					buffer[#buffer + 1] = str
+				end
+				window = string.sub(window .. str, -POS_SIZE)
+				offset = offset + #str
+			else
+				break
+			end
+		end
+
+		if #buffer > 0 then
+			output[#output + 1] = string.char(flags)
+			output[#output + 1] = table.concat(buffer)
+		end
+	end
+
+	return table.concat(output)
+end
+
+--------------------------------------------------------------------------------
+function M.decompress(input)
+	local offset, output = 1, {}
+	local window = ''
+
+	while offset <= #input do
+		local flags = string.byte(input, offset)
+		offset = offset + 1
+
+		for i = 1, 8 do
+			local str = nil
+			if (flags & 1) ~= 0 then
+				if offset <= #input then
+					str = string.sub(input, offset, offset)
+					offset = offset + 1
+				end
+			else
+				if offset + 1 <= #input then
+					local tmp = string.unpack('>I2', input, offset)
+					offset = offset + 2
+					local pos = (tmp >> LEN_BITS) + 1
+					local len = (tmp & (LEN_SIZE - 1)) + LEN_MIN
+					str = string.sub(window, pos, pos + len - 1)
+				end
+			end
+			flags = flags >> 1
+			if str then
+				output[#output + 1] = str
+				window = string.sub(window .. str, -POS_SIZE)
+			end
+		end
+	end
+
+	return table.concat(output)
+end
+
+EXPORT.lzss = M
\ No newline at end of file
diff --git a/.build/10_bios.lua b/.build/10_bios.lua
new file mode 100644
index 0000000..614846a
--- /dev/null
+++ b/.build/10_bios.lua
@@ -0,0 +1,86 @@
+local function mkplat(plat)
+	local h = io.popen("luacomp src/loader.lua".." 2>/dev/null")
+	local loader = h:read("*a")
+	h:close()
+	local h = io.popen("ZY_PLATFORM="..plat.." luacomp src/zy-neo/neoinit.lua 2>/dev/null | lua5.3 utils/makezbios.lua")
+	local dat = h:read("*a")
+	h:close()
+	os.execute("mkdir -p pkg/bios")
+	local h = io.open("pkg/bios/"..plat..".bios", "wb")
+	h:write(string.format(loader, dat))
+	h:close()
+	if (os.execute("[[ $".."(stat --printf=%s pkg/bios/"..plat..".bios) > 4096 ]]")) then
+		io.stderr:write("WARNING: "..plat.." bios is over 4KiB!\n")
+	end
+end
+
+--[[function actions.managed_bios()
+	mkplat("managed")
+end
+
+function actions.initramfs_bios()
+	mkplat("initramfs")
+end
+
+function actions.prom_bios()
+	mkplat("prom")
+end
+
+function actions.osdi_bios()
+	mkplat("osdi")
+end
+
+function actions.bootstrap()
+	--os.execute("luacomp src/zy-neo/zinit.lua | lua5.3 utils/makezbios.lua > pkg/bios/bootstrap.bin")
+	local h = io.popen("luacomp src/zy-neo/zinit.lua")
+	local dat = h:read("*a")
+	h:close()
+	local h = io.open("pkg/bios/bootstrap.bin", "wb")
+	h:write(lzss.compress(dat))
+	h:close()
+end
+
+function actions.bios()
+	actions.managed_bios()
+	actions.initramfs_bios()
+	actions.prom_bios()
+	actions.osdi_bios()
+	actions.bootstrap()
+end]]
+
+local blist = {}
+
+local function addbios(name)
+	blist[#blist+1] = name..".bios"
+	task(name..".bios", function()
+		status("build", name)
+		mkplat(name)
+	end)
+end
+
+addbios("managed")
+addbios("initramfs")
+addbios("prom")
+addbios("osdi")
+
+task("bootstrap.bin", function()
+	local h = io.popen("luacomp src/zy-neo/zinit.lua".." 2>/dev/null")
+	local dat = h:read("*a")
+	h:close()
+	local h = io.open("pkg/bios/bootstrap.bin", "wb")
+	h:write(EXPORT.lzss.compress(dat))
+	h:close()
+end)
+
+task("bios", function()
+	for i=1, #blist do
+		dep(blist[i])
+	end
+	dep("bootstrap.bin")
+end)
+
+--[[actions[#actions+1] = "managed_bios"
+actions[#actions+1] = "initramfs_bios"
+actions[#actions+1] = "prom_bios"
+actions[#actions+1] = "osdi_bios"
+actions[#actions+1] = "bootstrap"]]
\ No newline at end of file
diff --git a/.build/11_modules.lua b/.build/11_modules.lua
new file mode 100644
index 0000000..8c357b1
--- /dev/null
+++ b/.build/11_modules.lua
@@ -0,0 +1,35 @@
+local function make_module(mod)
+	os.execute("mkdir -p pkg/mods")
+	--print("MOD", mod)
+	local arc = false
+	if (os.execute("[[ -d mods/"..mod.."/arc ]]")) then
+		arc = "mods/"..mod.."/arc"
+	end
+	local h = io.open("pkg/mods/"..mod..".velx", "w")
+	h:write(EXPORT.velx("init.lua", arc, {
+		PWD = os.getenv("PWD").."/mods/"..mod
+	}))
+	h:close()
+end
+
+local mods = {}
+
+local h = io.popen("ls mods", "r")
+for line in h:lines() do
+	--[[actions["mod_"..line] = function()
+		make_module(line)
+	end]]
+	task("mod_"..line, function()
+		status("build", line)
+		make_module(line)
+	end)
+	mods[#mods+1] = "mod_"..line
+end
+
+task("allmods", function()
+	for i=1, #mods do
+		dep(mods[i])
+	end
+end)
+
+--actions[#actions+1] = "allmods"
\ No newline at end of file
diff --git a/.build/12_libraries.lua b/.build/12_libraries.lua
new file mode 100644
index 0000000..ee5558f
--- /dev/null
+++ b/.build/12_libraries.lua
@@ -0,0 +1,33 @@
+local function make_library(mod)
+	os.execute("mkdir -p pkg/lib")
+	--print("LIB", mod)
+	local arc = false
+	if (os.execute("[[ -d lib/"..mod.."/arc ]]")) then
+		arc = "lib/"..mod.."/arc"
+	end
+	local h = io.open("pkg/lib/"..mod..".velx", "w")
+	h:write(EXPORT.velx("init.lua", arc, {
+		PWD = os.getenv("PWD").."/lib/"..mod
+	}))
+	h:close()
+end
+
+local lib = {}
+
+local h = io.popen("ls lib", "r")
+for line in h:lines() do
+	--[[actions["mod_"..line] = function()
+		make_module(line)
+	end]]
+	task("lib_"..line, function()
+		status("build", line)
+		make_library(line)
+	end)
+	lib[#lib+1] = "lib_"..line
+end
+
+task("alllibs", function()
+	for i=1, #lib do
+		dep(lib[i])
+	end
+end)
\ No newline at end of file
diff --git a/.build/20_pkg.lua b/.build/20_pkg.lua
new file mode 100644
index 0000000..4dfe8a8
--- /dev/null
+++ b/.build/20_pkg.lua
@@ -0,0 +1,3 @@
+task("makepkg", function()
+	os.execute("cd pkg; find bios lib mods -depth | lua ../utils/make_tsar.lua > ../release/zorya-neo-update.tsar")
+end)
\ No newline at end of file
diff --git a/.build/30_selfextract.lua b/.build/30_selfextract.lua
new file mode 100644
index 0000000..9fab280
--- /dev/null
+++ b/.build/30_selfextract.lua
@@ -0,0 +1,22 @@
+local function makeselfextract(indir, outfile)
+	local cwd = os.getenv("PWD")
+	os.execute("cd "..indir.."; find * -depth | lua "..cwd.."/utils/make_tsar.lua | lua "..cwd.."/utils/mkselfextract.lua > "..cwd.."/"..outfile)
+end
+
+task("installer", function()
+	os.execute("cp utils/ser.lua pkg/init.lua")
+	os.execute("mkdir -p pkg/installer_dat")
+	os.execute("cp installer_dat/bios_list.lua pkg/installer_dat")
+	os.execute("cp installer_dat/package_list.lua pkg/installer_dat")
+	os.execute("mkdir -p pkg/installer_dat/lang")
+	local h = io.popen("ls installer_dat/lang | grep lua", "r")
+	for line in h:lines() do
+		os.execute("luacomp installer_dat/lang/"..line.." -O pkg/installer_dat/lang/"..line.." 2>/dev/null")
+	end
+	h:close()
+	makeselfextract("pkg", "release/zorya-neo-installer.lua")
+end)
+
+task("utils", function()
+	makeselfextract("util", "release/zorya-neo-utils-installer.lua")
+end)
\ No newline at end of file
diff --git a/.build/ff_meta.lua b/.build/ff_meta.lua
new file mode 100644
index 0000000..ee2c7d6
--- /dev/null
+++ b/.build/ff_meta.lua
@@ -0,0 +1,17 @@
+task("clean", function()
+	os.execute("mkdir -p pkg")
+	os.execute("rm -rf pkg/*")
+
+	os.execute("mkdir -p release")
+	os.execute("rm -rf release/*")
+end)
+
+task("all", function()
+	dep("dirs")
+	dep("bios")
+	dep("allmods")
+	dep("alllibs")
+	dep("makepkg")
+	dep("installer")
+	dep("utils")
+end)
\ No newline at end of file
diff --git a/.buildactions/00_setup.lua b/.buildactions/00_setup.lua
index 81d5b11..e2bbb3f 100644
--- a/.buildactions/00_setup.lua
+++ b/.buildactions/00_setup.lua
@@ -1 +1,3 @@
+unpack = unpack or table.unpack
+
 os.execute("mkdir -p release")
\ No newline at end of file
diff --git a/.buildactions/01_velx.lua b/.buildactions/01_velx.lua
index 048a396..97e6bda 100644
--- a/.buildactions/01_velx.lua
+++ b/.buildactions/01_velx.lua
@@ -212,4 +212,8 @@ local function velx(path, arcpath, args)
 		prez = function()end,
 		postz = function()end,
 	})
+end
+
+local function velxv2(sections)
+
 end
\ No newline at end of file
diff --git a/src/zy-neo/builtins/util_velx.lua b/src/zy-neo/builtins/util_velx.lua
index a9d7112..e0da470 100644
--- a/src/zy-neo/builtins/util_velx.lua
+++ b/src/zy-neo/builtins/util_velx.lua
@@ -119,8 +119,8 @@ do
 			if (sec.id == osid and sec.name == name or sec.id == 0) then
 				self.seek(sec.pos-self.seek())
 				local dat = self.read(sec.size)
-				if (sec.tags.compression == "lz4") then
-					dat = lz4_decompress(dat)
+				if (sec.tags.compression == "lzss") then
+					dat = lzss_decompress(dat)
 				end
 				return dat
 			end